Financial Times 12,687 by Cincinnus

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Another beauty from Cincinnus. Don’t you love 27A? Also great are 12A and 26D.

Across
1. ABOVE SUSPICION – anagram of OBVIOUS IN SPACE
10. ALGOL – hidden word
11. NARRATION – ARR (arranged) in NATION (people)
12. ESTATES – double definition
13. SHINGLE – anagram of ENGLISH
14. YALTA – LAY (deposit) reversed + TA (cheers)
16. ELEGANTLY – A (a) + NT (midwinter) + L (lake) in ELEGY (poem)
19. FREIGHTER – RE (engineer) in FIGHTER (aircraft)
20. YIELD – double definition
22. RESOLVE – double/cryptic definition
25. PILOTED – LOT (a considerable number) in PIED (sort of Piper)
27. UNTOUCHED – UN (one in Nancy) + TOUCHED (batty)
28. GROWL – GR (Greek) + OWL (bird),
29. AUDITORY SYSTEM – anagram of A MYSTERY STUDIO

Down
2. BAGATELLE – GAT[eau] (a cake cut in half) in BELLE (beauty)
3. VALET – VALE (farewell) + T[o]
4. SENESCENT – SE (area of Kent) + NE (area of Northumberland) + SCENT (fragrance)
5. SARIS – [a]S[i]A[n] R[a]I[l]S
6. IMAGINARY – I (island) + MARY (girl) with GIN (drink) inserted
7. ICING – double definition
8. NUNNERY – NUNN (director — Trevor) + ER (Queen) + [mar]Y
9. BARELY – BA (graduate) + RELY (bank)
15. ANGEL DUST – ANGEL (backer) + DUST (clean)
17. EURIPIDES – PI (constant) + RUE (regret) reversed + IDES (date in Rome)
18. TWENTY ONE – double definition
19. FORTUNA – FOR (in favour of) + TUNA (fish)
21. DODDLE – DD (divine) in DOLE (benefit). I think of DD as meaning Doctor of Divinity and am unsure how just “divine” clues DD.
23. SATED – hidden word
24. ESHER – [fr]ESHER
26. LAGOS – LA (US city) + GO (try) + S (South)