No 11889, Wednesday 28 Dec 2016, Neyartha

ACROSS
1   Some furniture items placed around the premium personal computers (8) DESKTOPS {DESK{TOP}S}
5   Signs in the sky? (6) ZODIAC [CD]

9   Navigator in trouble after disregarding a type of gauge boson (8)  GRAVITON NaVIGATOR*
10 Short summaries about an aid for laying tiles (6) SPACER <=
11 Find ill species at sea by controlling one's own impulses (4-10) SELF-DISCIPLINE*
14 A set of closely related notes for the Chinese mafia (5) TRIAD [DD]
16 Reconsiders change after I ignored the departed Cuban leader's supporters (9) ENDORSERS {REcONSiDERS}*
17 A varied collection in the vessel on the river by an old city abutting Rhode Island (9) POTPOURRI {POT}{PO}{UR}{RI}
19 Barramundis cooked partially in a dance hall (5) DISCO [T]
20 Grip a red carpet crumpled with a thick sheet for drawings (9,5) CARTRIDGE PAPER*
23 Tesla and Oscar get behind the speaker's mortgage for the rough shelter (4-2) LEAN-TO (~lien){LEAN}-{T}{O}
24 Decisive blow by the new government behind the Chinese warehouse in the former Crown colony (4,4) HONG KONG {HONG} {KO}{N}{G}

25 Surrenders grounds after the force gets taken out by the Yankee (6) YIELDS (-f+y)YIELDS
26 Take off from the east to interrupt talk on daydreaming (8) SLEEPING {S{PEEL<=}ING}

DOWN
1   Follows closely with the hounds (4) DOGS [DD]
2   A treacherous one in the grass? (5) SNAKE [CD]
3   Very loud one caught in the sludge's upset by a fictional plant (7) TRIFFID {FF}{1} in {DIRT<=}
4   Overcharged peer for edit under the influence (11) PROFITEERED*
6   Officially being supported by the auditor's salary to make a relaxed sound on the radio (2,5) ON PAPER {ON} {PA}(~pay){PER}(~purr)
7   It's kept around some Asians briefly to produce an irritating sensation (9) ITCHINESS {IT{CHINESe}S}
8   Joint purchase at the British convenience store (6,4) CORNER SHOP {CORNER} {SHOP}
12 Agitated Olivier, cold, gets a source of some vitamins (3-5,3) COD-LIVER OIL*
13 Clay pit lay in ruins in a manner that is not representative (10) ATYPICALLY*
15 Cross boundary after the leading fielder gets overwhelmed by a student (9) INTERLACE INTER(-f+l)LACE
18 Danish physicist stretched the truth after discarding the vat (7) OERSTED OvERSTatED
19 Slowly follow student introduced to the poor Democrat at the wrong place (7) DRAGGLE {L} in {(+d)DRAGGE(-d)}
21 Bacterium species revealed in some cases of ulcerative colitis (1,4) E COLI [T]
22 Highly excited by the German's entry into the rising Indian state (4) AGOG {G} in {GOA<=}

GRID