ACROSS
7. <deprived residential area> SHANTY TOWN = (SHANT OWN) outside YT
9. <bar turned round> AXLE = X inside ALE
10. <bird of prey> TAWNY OWL = (TAN outside W) + YOWL
11. <painkiller> OPIATE = (I ATE) after OPIATE
12. <shy person> SHRINKING VIOLET = LONEVIKINGSHIRT*
14. <defeat> THWART = (-uncou)TH WAR T(-actics)
16. <Ethiopian staple> INJERA = I(-co)N(ic) J(-am)E(-s o)R(-ch)A(-rd)
18. <spend as much as you like> THE SKY'S THE LIMIT = ¿?the Sky [TV package we have] is the limit [of what I can endure]¿?
20. PILL + AR = PILLAR <support>
21. AC COLA + D E = ACCOLADE <award>
23. "MUSE" = MEWS <apartments converted from stables>
24. <so-called> OSTENSIBLE = O + (T inside SENSIBLE)

DOWN
1. <denomination> SHI'A = S + H I A
2. ←IS NANA← = ANANSI <trickster god of West African folklore>
3. <somehow> BY HOOK OR BY CROOK = (Y(-a)HOO + K + ⭯CORBY⭯) inside BROOK
4. ICING outside (CONVEN(-t) inside NI + EN) = INCONVENIENCING <disturbing>
5. (BRIT outside A) + ONE = BARITONE <voice>
6. <fahionable people> GLITTERATI = (LITTER A T) inside GI
8. (-c)OO(-k) + LONG = OOLONG <tea>
13. <traveller> HITCHHIKER = H + ITCH H + (-b)IKER
15. (L IS) inside WHIST* = WISH LIST <ideal order?>
17. <sound> STRAIT = TRAIT after SAFE
19. IN ←DIAL← = INLAID <decorated with marquetry, perhaps>
22. <dunderhead> DOLT = DO + LT