Beelzebub 1,223

A reasonably smooth solve this week, perhaps due to some relatively uncomplicated wordplay in parts, and generally more accessible vocabulary than some weeks. Still there were a few to check in Chambers, and 15dn beat me entirely, though it seems tractable enough once one knows the answer!

*=anag, []=dropped, <=reversed, hom=homophone, cd=cryptic definition, dd=double definition.

Across
1 INTERSPACE – (RENT* + SPA) in ICE.
11 STROBIC – ROB in STIC[k].
12 STROOKE – OK in STORE*.
13 SMIRR – RIMS< + R.
14 TRENDY – END in TRY.
16 ODYSSEAN – (YES AND SO)*.
18 UNSAYS in (U + NAY).
19 LITANY – LIT + ANY.
20 MIOTIC – 0 in (MI + TIC).
22 DIRAC – (S + ARID)<.
24 ENMESHED – ENME[r] + SHED.
26 PELOTA – LOT in PEA.
28 TREATTR + EAT.
29 IMPERIL – IMPERI[a]L.
30 AUSTRAL – STAR* in [h]AUL.
31 PEACOCKERY – ((A + CO) in PECKER) + Y.
Down
1 INSTRUMENTAL – IN + STRUM + NEAT* + L.
2 NATRONN + [p]ATRON.
3 THREESOMET + (SEER< in HOME).
4 ROOD – hom. of “rude”.
5 PTERYLAE – ([g]ET PLAYER)*.
6 ARSIS – [appe]ARS IS[olated].
7 C0MESTIBLES – COMES + (B in TILES).
8 FIRMAN – FIR + MAN.
9 ACRONYCHALLY – (CRONY + CHA) in ALLY.
10 CONCATENATE – (CA + TEN + A) in CONTE.
15 REARHORSE – REAR + HORS + E.
17 DOCHMIAC – (C = AIM<) in DOC.
21 IMBRUE – U in [t]IMBRE.
23 ANTIAR – A in (ANTI + R).
25 SUTRAS + UT + RA.
27 EPIC – E-PIC.