Another quite tough week, I found. I had barely half the grid filled before reaching for Chambers. That helped with confirming 16, 24 and 28 and things started to fall in quite smoothly from there on.
*=anagram, []=dropped, <=reversed.
| Across | |
|---|---|
| 1 | IMPINGE – PIN in IMAGE. |
| 7 | REPP – [u]PPER<. |
| 10 | DIAERESES – (RES in SEE<) + AID. |
| 11 | TROT – T + ROT. |
| 12 | BOILERY – OILER in BY. |
| 13 | ASTRONOMIC – (CATS IN ROOM)*. |
| 14 | SIERRA NEVADA – ((I + ERR) in SANE) + V A[n]D A. |
| 15 | CLASPS – P in CLASS. |
| 21 | POPPET – POP + PET. |
| 22 | PARALIPOMENA – POM in (PAR + ALIEN + A). |
| 24 | TRAGACANTH – (C + ANT) in (HAG + ART)<. |
| 26 | RESIDER – RE + S[p]IDER. |
| 27 | ROUE – 0 in RU. |
| 28 | CARBINEER – NIB< in CAREER. |
| 29 | HEME – HEM + [pal]E[tte]. |
| 30 | BLASTED – LAST in BED. |
| Down | |
| 1 | IOTA – IO + TA. |
| 2 | MARSILEACEAE – (CALM AREA I SEE)*. |
| 3 | PROTEAN – ROTE in PAN. |
| 4 | NIDOR – (ROD + IN)<. |
| 5 | GABNASH – BAN* in GASH. |
| 6 | PRIMERO – RIME in PRO. |
| 7 | RELIVE – RELI[e]VE. |
| 8 | PERADVENTURE – (DARE< + VENT) in PURE. |
| 9 | PSYWAR – WAYS* in PR. |
| 16 | PALADIN – LAD in PAIN. |
| 17 | APPAREL – ([popula]R + [vot]E) in APPAL. |
| 18 | OPEN OUT – OP + (U in TONE<). |
| 19 | EPARCH – [brasseri]E + PARCH. |
| 20 | CARIBE – IB in CARE. |
| 23 | OCREA – [hav]OC REA[ssuring]. |
| 25 | HEAD – HE + AD. |