Times Cryptic 27,252

[NeilMunro]

Very grateful for all help with these clues please.
12ac: “Decorate without being clumsy (9).”
25ac: “About to come in on air, playing instrument (7).”
8dn: “Rebel worker buried under refuse (9).”
15dn: “Stew over author regularly in a difficult situation (3,6).”

[Neveracrossword]

25 Ocarina, instrument

[Lie-in King]

12a Graceless - 'grace (decorate) less (without)'
25a Ocarina - 'c(irc)a' (about, in) anag 'on air'
8d Resist-ant (refuse + worker)
15d Hot potato - 'hotpot' + 'AuThOr' (regularly)

[Neveracrossword]

15 Hot Potato, difficult situation. Hotpot, stew + ATO from A u T h O r.

[NeilMunro]

Many thanks!