No 9730, Saturday 02 Jan 10, M Manna

Stumped by 20A
ACROSS
1 - Guard tip after getting fed-up (6) - {DEF<-}{END}
4 - Places out of sight to prevent disclosure (8) - CONCEALS [CD]
10 - Chinaware seems in broken state (7) - MEISSEN*
11 - A chord around the neck to hang a knife (7) - LANYARD [E]
12 - Call-up, we hear, includes first couples in Somerset House (4) - SOHO<- ? Anno pending )
13 - Women over-order (10) - PRIORESSES [CD]
16 - Left nothing due on either side (6) - E{L}{EVEN} Don't know where the first E came from
17 - Turn around, to snare one in government (7) - SENATOR*
20 - Prevailing influence characterising a group (7) - GLAMORS ? (Addendum - CLIMATE - Thanks to Sandhya)
21 - Fish for the little devil I’m after (6) - {SCAMP}{I}

24 - He plans street to speed the general idea (10) - {ST}{RATE}{GIST}
25 - Elie takes turn in place of another (4) - LIE(-e+u)U* Why does U take place of E
27 - Finally rose up to publicly and definitely support candidate (7) - {END}{ORSE*}
29 - Mussolini hurried into the river in France (7) - DU{RAN}CE
30 - Slipping down the pro leaps out (8) - {PRO}{LAPSE*}
31 - The French chat about having a cottage in the Alps (6) - CHA{LE}T

DOWN
1 - Refuse to sort out rest of rubbish in container (8) - {DUMP}{STER*}
2 - Put your trust in this physician (5, 6) - FAITH HEALER [CD]
3 - Modified structure to serve as abode for animals (4) - NEST Anno pending
5 - One who is about to see that things are right is a spectator (8) - {ON{LOOK}E}{R}
6 - Legal document that could be a trap (10) - CONVEYANCE [DD]
7 - She can possibly be a lawyer (3) - {A}{DA}
8 - It’s sad to see him inflict pain on others (6) - SADIST*
9 - Displayed strong displeasure when youth rang to disturb him (5) - {ANGR*}{Y}
14 - It lets you know there’s a rough time ahead (5, 6) - STORM SIGNAL [E]
15 - High rise accommodation built by workers for their own occupation (10) - TERMITARIA [E]

18 - Is amazing, to old hands wearing a G-string (8) - {PRO{G}{RES}S} Anno for RES pending (Addendum - STAG{G}ERS - Thanks to Sandhya)
19 - Time a good man’s taken — the very least (8) - {MINUTE}{ST}
22 - Please do not be dormant (6) - ASLEEP*
23 - Utterance not to be audible to others (5) - ASIDE [E]
26 - Char out the chief opponent (4) - ARCH*
28 - Accept class in party for a pair (3) - D{U}O

GRID