Beelzebub 1,328 – Fifteensquared

A pretty challenging puzzle, I thought, particularly towards the left. I was left with a good few to confirm or even find in Chambers, and I’ve still failed to understand a couple.

The troublesome ones are 26 across and 23 down.

*=anagram, []=dropped, <=reversed. Hover to expand abbreviations.

Across
1	ABSQUATULATE – two definitions. An interesting US word that can mean essentially opposite things: to squat or to decamp.
11	SABURRA – A BURR in SA.
12	VENT – two definitions: an old word for “sale”, and an outlet.
13	LABOURER – LAB [t]OURER.
15	ILLTH – L in [f]ILTH.
17	ARTERY – [qu]ARTER + Y.
18	EXHAUST – US in (EX HAT).
19	FETAL – F + LATE<.
21	GAG-REIN – E in Uri GAG[a]RIN.
23	POCKY – COP< + KY.
24	ILLAPSE – LAPS in ILE. Corsica being a French island, and île being French for island.
26	REHEAT – That ship’s returning to take on board extra propulsion.
29	OCEAN – E in (O + CAN).
30	THEREOUT – \|E in (THE ROUT).
31	LAWN – L + AWN.
32	ANIMATE – AN + I + MATE.
33	PAPER-STAINER – (SPARE PAINTER)*.

Down
1	ASLEEP – AS + PEEL<.
2	BAAS – SAAB<.
3	QUOTA – OT in QUA.
4	URUGUAY – U + RU + (A in GUY).
5	ARRIS GUTTER – ARRIS[h] + G + UTTER.
6	UNRAVELMENT – Maurice RAVEL in UNME[a]NT.
7	LAIR – [t]RIAL<.
8	TELETYPE – TELE + (P in YET*).
9	ENTRAP – (PART + [o]NE)<.
10	ETHYL – THY in EL.
14	ESTRICH – [p]EST RICH. Nice clue.
16	CHICHEWA – CHIC + HEW + A.
19	FILARIA – (AIR + A LIF[e])<.
20	TOECAP – (ACE IN POT)<.
22	YESTER – YES + TER[m].
23	PROLE – 13’s cut leg.
25	ADEMI – AD + EMI.
27	ANTE – A N[o]TE.
28	JUTE – JU[ga]TE. I spent a while trying to see why this was JU[s]TE, which it isn’t after all.