No 9858, Wednesday 02 Jun 10, Neyartha

Neyartha at his devious best has me stumped all over today.

ACROSS
1   - Analysed Ohm's chip ROM to get the colour changing property (13) - PHOTOCHROMISM*
9   - Squatter with drug forced out by old Greek counsellor (6) - NEST(-e+o)OR
10 - Frenchman taken in by wool Dan knitted for granny on pension, say (3,5) - {OLD WO{M}AN*}
11 - Metal canister (3) - TIN [DD]
12 - PCPs about to go back in autos (6) - {CAR{ER<-}S}
13 - Features of some bone joints in the new clones containing daughter's chromosomes (8) - {CON{D}{Y}LES*}

14 - Brawl in retreat (not a nightclub junction) (5-5) - {SaCARF<-}-{JOINT}

17 - Heard sound that may be made by a tailor (4) - SNIP [CD] (Addendum -  SNAP ? Anno pending)(Addendum I - SEAM(~seem) - Thanks to Chaturvasi)
18 - This is an example (4) - CLUE &lit
19 - Shapes drawn around returned drain chemicals (10) -{SEC{RE}TIONS}(Needs correction - S?H?E?I?E?}
21 - Appealed to dismiss Tom? Granted! (8) - SUPPLIcatED
23 - Sails after baffled sea-going soldier goes missing (6) - GENOASgi*

25 - Overheard party being scheduled… (3) -??E (Addendum - DUE(~do) Thanks to MAddy)

26 - … by models in ball having a simple musical performance (8) - DUE{TT}{IN}{O} Thanks to Maddy
27 - Had a cold reaction, perhaps when son substitutes vitamin desired (6) - NEE(-d+s)SED
28 - Meshing together (13) - INTERTWISTING [E] (Addendum - INTERKNITTING [CD] - Thanks to Kishore)
DOWN
2   - Animal found in Hungary's borders and southern half of Helena (5) - {H}{Y}{helENA}

3   - Kind of fee hitter gets, exempt from tax (5-4) - TITHE-FREE*
4   - Transfers from Graphic Art school (5) - CARTS [T]
5   - Sounds from Pole restrained by a couple of Greek characters (7) - {RHO}{N}{CHI}
6   - In the south of France, trap Lawrence with saleswoman (9) - {MIDINET}{TE} Anno prnding (Addendum - {MIDI}{NET}{TE} - Thanks to Kishore}
7   - Son finally going up to Wyoming sees blizzard-like conditions (5) - {SNO(n<-)}{WY}
8   - Word of caution about Alaskan cake pans and cookie sheets (8) - ?A?E?I?N (Addendum - {B{AK}EWARE} - Thanks to Kishore see comments)

15 - Branch of mathematics analysed by a dentist? (8) - CALCULUS [DD]
16 - Roman law (3,6) - JUS CIVILE [E]
17 - Insist Ken is in trouble for being the most emaciated (9) - SKINNIEST*
20 - Fish and rum sent up for consumption by journalist (7) -{C?D}???T (Addendum - {HA{DDO<-}CK} - Thanks to Veer)
22 - Metal spike found in Hampi tonga (5) - PITON [T]

23 - Information on the 11 spirits (5) - {GEN}{II}
24 - Irish politician, another eccentric to get ousted (5) - AHERNto*

GRID

No 9857, Tuesday 01 Jun 10, Neyartha

Some doubtful annos.
ACROSS
1   - Car with a piano driven around by a mental patient (9) - PARANOIAC*
6   - On reflection, gets rid of line on letter (5) - SERIF<-

9   - Gas Gauss replaced with sulphur in a criminal act (5) - AR(-g+s)ON
10 - This groom is a steady chap! (9) - {STABLE}{MAN}
11 - Endorse opening (7) - INITIAL [DD]
12 - Briefly teach revolutionary about bad PR in Brussels, say (6) - {hCA{RP<-}ET<-} ?
14 - Stag perceives loss of power (5) - GRASpS Never heard of this meaning for stag

15 - Court worker (6,3) - TENNIS PRO [CD]

17 - A fruit can get crushed when taken in a state of deviance (9) - {A}{BERR{ANC*}Y}
19 - Painter's friend following cry from the east (5) -{BOS<-}{CH} ? CH from Companion of Honour like yesterday?
20 - Short public announcements online? (6) - TWEETS [CD]
22 - Cloak landlord provided with California port (7) - OAKLAND [T]
24 - Grounds for status bar modification (9) - SUBSTRATA*
25 - Bush's expression of surprise when entering court (5) - {W{AH}OO}

26 - Mug caught by creep (5) - SIDLE  Anno pending
27 - Nuclear weapon, a sordid failure (5,4) - {DIRTY} {BOMB}
DOWN
1   - Auditor's seizing main sets ruined by insects (7,8) - (~preying){PRAYING} {MANTISES*}

2   - Understood written up plan outside to give a country look (9) -{RUS{TICAT<-}E}
3   - Girl employed by NASA regularly ignored by the governesses (7) - {Na{ANNIE}Sa}
4   - Signal unit to develop shielding (10) - INSULATING*
5   - Boxer Ali, prior to getting caught for power to take part in a game (4) - (-p+c)CLAY
6   - Courses upsetting Bill, say (7) - SYLLABI*
7   - Prema initially goes way down to develop a new plot (5) - pREMA(+p)P
8   - It may be used to go over in a detailed approach (4-7,4) - FINE-TOOTHED COMB [CD]

13 - Article on lousy ark designed for a member of the Jurassic Park? (10) - {AN}{KYLOSAUR*}

16 - Nut with injured hip restricting Tom's turning up at 10 (9) - {PI{STAC<-}H*}{IO}
18 - Naughty lettering censored? Not good to give a new name (7) - RETITLEng*
19 - American cycle track (7) -BIKEWAY [E]
21 - Flagged letters from Zagreb Bedouin (5) - EBBED [T]
23 - Severe complex (4) - HARD [DD]

GRID