No 12073, Monday 31 Jul 2017, Arden

ACROSS
1   Restrained a model — can a man hold back a bit? (8) MANACLED [T<=]
5   All the characters are deadly (6) LETHAL*
10 Camp on top of lake bed (7) COTERIE {COT}{ERIE}
11 Controls to check wrong doing (5,2) REINS IN {REIN}{S IN}
12 City residents seen only on Sunday (5) LYONS [T]
13 National day off, wait and see anyway (9) TAIWANESE {WAIT+ANd+SEE}*
14 One caught between two vehicles is reversing — taking time at the inn (12) CARAVANSERAI {CAR}{A}{VAN}{S{ERA}I<=}
18 Introspect about accepting my drug (12) STREPTOMYCIN {INTROSPECT}* over {MY}
21 Basis for keeping say, Yuvraj out of a cricket tournament (9) PRINCIPLE {PRINCE} over {IPL}
23 Not happy about husband's support (5) SHORE {S{H}ORE}
24 Time for certain deletion (7) ERASURE {ERA}{SURE}
25 Tips from marquee sales — perhaps it could spread very fast (7) MEASLES {Ma..uE}{SALES*}
26 Hindrance to follow spy ring (6) EYELET {EYE}{LET}
27 Essential hints uncovered for big returns (8) INTEGRAL {hINTs}{LARGE<=}

DOWN
1   I have bad luck, to a large extent (6) MUCKLE {M{LUCK*}E}
2   Idea of a stable atom (6) NOTION {NOT}{ION}
3   He cheats a fair deal (4,5) CARD SHARP [CD]
4   Making treacle not so simple — a study in psychology (7,7) ELECTRA COMPLEX {TREACLE}* {COMPLEX}
6   I care about this plant (5) ERICA*
7   Those on the move start looking for Railway lodge (8) HOSTELRY {THOSE*}{Lo...g}{RY}
8   It could be revealing some fish under lake (8) LINGERIE {LING}{ERIE}
9   Oh yes! He is called to serve on board (8,6) ORDINARY SEAMAN (Oh yes ~ O S )
15 Well maintained fleet, hard to copy (9) SHIPSHAPE {SHIPS}{H}{APE}
16 Pioneers in making volatile stuff (8) ISOPRENE*
17 Cross over to set up water (8) IRRIGATE {IRATE} over {RIG}
19 Monkey's faux pas (6) HOWLER [DD]
20 Metal stand, a nasty piece of work (6) WEASEL {W}{EASEL}
22 Take off the top layer, still it's rough (5) CRUDE cRUDE

GRID