No 9630, Monday, 07 Sep 09, Gridman

ACROSS
1 - I, with regent, cooked up a number (7) - INTEGER*
5 - Lower graduates in the river (6) - DE{BAS}E
9 - Tiredness of dispirited nine going round a bend (5) - ENN{U}I*
10 - Hopelessly restive, the setter is to spend a period in prison (5,4) - SERVE TI*{ME}
11 - “Physician, heal _________” (7) - THYSELF [CD]
12 - Country vehicle takes a turn at University (7) - {VAN}{U}{AT}{U}
13 - Board game for the revolutionary on board (5) - {CHE}{SS}
14 - Teaching the Oriental with old coin the leader returned (9) - {E}{DUCAT}{ION<-} )
16 - Valiant, he banished a monster (9) - LEVIATHAN*
19 - Shooter’s output (5) - PHOTO [CD]
21 - Strays away from den destroyed in fights (7) - WA{NDE*}RS
23 - Praise is commonplace, going round a rearended bus (7) - TRI{BU(-s)}TE
24 - Unhappy at being away, losing cat (“Spotty”) (9) - NOSTALGIC* What's the link to Spotty ?
25 - In China I admired a water-nymph (5) - NAIAD [T]
26 - It is of interest to an entomologist (6) - INSECT [E]
27 - The sun, for example (3,4) - DAY STAR [CD]
DOWN
1 - Gemini, Gemini, for example? (9,5) - IDENTICAL TWINS [CD]
2 - Tiny pet model in old photographic process (7) - TINTYPE*
3 - Old coins you’re said to have left rolling in porch swings (7) - GUINEAS Anno pending or is it GLIDERS(-u)* (Addendum - GLIDERS(-u)* is the correct answer, see the link to the word)
4 - Refs and heros got up like a new-blossomed flower (4,5) - ROSE FRESH* Heros! or is it the printers devil at work
5 - Star helicopter? (5) - DHRUV [DD]
6 - Short bit Annie put together in two-year periods (7) - BI(-t){ENNIA*}
7 - Flustered Kashmiri sent away muddlehead of a game hunter (7) - SHIKARI(-m)*
8 - What is advised when the addressee is unknown (6,2,6) - RETURN TO SENDER [E]
15 - One is seen if one does not remain thus (9) - {UN}{NOTICED}
17 - It may be cooking in ovens (7) - VENISON*
18 - Nothing special in Vera being put out for a time (7) - {AVER*}AGE
19 - Suppleness of one caught in scheme on borders of city (7) - PL{I}AN{C(-it)Y}
20 - One who helps you to have a better vision (7) - OCULIST [E]
22 - It might be seen as a tourist attraction (5) - SIGHT [E]