The Sunday Crossword, Sunday 26 Mar 2017

ACROSS
1   Meek letter after replacement (10) SUBMISSIVE {SUB}{MISSIVE}
6   Large number in service (4) MASS [DD]
9   King grows old and is uncontrollable (5) RAGES {R}{AGES}
10 Track back during ceasefire behind small building (9) STRUCTURE {S}{TRUC{RUT<=}E}
12 Twisted screw finally fixed, securing line (8) WRIGGLED {s..eW}{RIGG{L}ED}
13 Part of gun found in river in wood (6) BREECH {B{R}EECH}

15 Proper variety of coral, you recall, initially red? (7,6) PRIMARY COLOUR {PRIM}{CORAL+YOU+Re...l}*
18 Novelist in state following gripping yarn (8,5) VIRGINIA WOOLF {VIRGINIA} {WOOL}{F}
20 Duplicate agent put away (6) REPEAT {REP}{EAT}
22 Filter signal's first followed by coach (8) STRAINER {Si...l}{TRAINER}
24 Clean a lot, getting frantic suddenly (3,2,4) ALL AT ONCE*
25 Identification with Greek character, not a fool (5) IDIOT {ID}{IOTa}
26 Restrained trend in hearing (4) TIED (~tide)
27 Couriers bringing pickle and mixed greens (10) MESSENGERS {MESS}{GREENS*}

DOWN
1   Calculating weight in fragment (6) SHREWD {SHRE{W}D}
2   Front of barrier one gripped, prepared for fairground ride (3,6) BIG DIPPER {Ba...r}{1}{GRIPPED}*

3   Corrupt financing – is it not important? (13) INSIGNIFICANT*
4   Methodical, say, working around check on habitual action (10) SYSTEMATIC {SY{STEM}A*}{TIC}
5   Change your answer, against getting up (4) VARY {YR}{A}{V}<=
7   A source of inspiration and delight (5) AMUSE {A}{MUSE}
8   Guide quietly separating woman and man on road (8) SHEPHERD {SHE}{P}{HE}{RD}
11 Evidence in speech after expression of surprise over cheat (13) CORROBORATION {COR}{ROB}{ORATION}
14 European news is yet to be translated for viewer (10) EYEWITNESS {E}{NEWS+IS+YET}*
16 Attack rotten thinking lacking power (9) OFFENSIVE {OFF}{pENSIVE}
17 Finished project, dull (8) OVERCAST {OVER}{CAST}
19 Overturned instrument good for nothing (6) GRATIS {SITAR}{G}<=
21 Beat seed (5) PULSE [DD]
23 Joint outlook needed to some extent (4) KNEE [T]

GRID