No 12232, Monday 05 Feb 2018, xChequer

Foxed by some obscure words and phrases today.

ACROSS
7   Roughly push and move it (6) HUSTLE [CD]
8   Military exercises used to be held around German base, out of sight (3,5) WAR GAMES {GERMAn}* in {WAS}
9   Marine slogan stoking fires, no ordinary poem (6,2) ?E?P?R?I  (Addendum - SEMPER FI - {FIRES+PoEM}* - See comments)

10 Crust of similar nature on Carbon-22, characteristically (6) CAKING {C}{AKIN}{G} ON or IN? See comments
11 Far-off lands essentially missing the post (5) AFTER {ThE} in {FAR}*
12 Insignificant note in record (6) MINUTE [DD]

14 Former privy chamber official, managing loo for monarch emptying bowels, gets to inner circle (5,2,3,5)  ?R?O? OF THE ?T?O? (Addendum - GROOM OF THE STOOL {LOO+FOR+Mo...cH+GETS+TO}* over {O} - See comments)

17 Measure, keeping record to testify (6) DEPOSE {D{EP}OSE}
18 Far-flung post boxes mark heavy footfall (5) STOMP {STO{M}P*}
22 Measure from cheek to leg (6) GALLON {GALL}{ON}
23 Special brew in a university organised spread (semi &lit) (5,3) AUDIT ALE Thanks to Google. Anno pending (Addendum - {A}{U}{sprEAD+LIT}* - See comments)
24 Large closed vehicle, horse-drawn, so coach? (8) CLARENCE {C{L}AR}{hENCE}

25 Serpentine river doubling back, one in the wild (6) OPHITE {PO<=}{H{1}TE*}

DOWN
1   Old type of tablets no cure, if having problems with sex (8) CUNEIFORM {NO+CURE+IF}*{M} Got derailed by this as the e-paper had 8 as the enu!
2   Principal's steady, softly relieving boy (6) STAPLE STA(-b+p)PLE
3   Children of Israel from twelve members, collectively related? (5) JEWRY (~jury)
4   Handout with check and mate? On the contrary, lured out of cover (8) BROCHURE {BRO}{CH}{lUREd}
5   Outrageous letting cost run high, care not regularly taken (4,4) RACK RENT {R}{AC{K}RE*}{NoT} K from? (Addendum - {R}{CARE+TaKeN}* - See comments)
6   Judge not using power, copper possibly made an ass (5) JENNY {J}{pENNY}
8   Work discipline — hit and hope pains compel better results? (4,4,5) WHIP INTO SHAPE {W}{HIT+HOPE+PAINS}*
13 Fellow men burning to participate in say, merry month of ceremony (9) FORMALITY  {F}{OR}{MA{LIT}Y}
15 Gold's undoing extremely likely without gold standard in the US (3,5) OLD GLORY {GOLD}*{Lik{OR}elY}

16 Rival circulating note on winning by proxy (8) OPPONENT {NOTE+ON}* over {PP}
19 Bad-tempered, create an acidic impression through heartless tyranny (6) TETCHY {ETCH} in {Ty,,,nY}
20 Story in book abridged in another leaf (5) FABLE {FA{B}LE*}
21 Medium for accessing information, reportedly shabby gypsy (2-3) CD-ROM (~seedy){CD}{ROM} Rom/Gypsy? See comments

GRID