Stuck on 3 which no-one else has raised.
5d: "Colour of honey, mostly, on slice of toast" (5) h-v-t
23d: "Man with stony face?" (5) c---- (Is this china, but that doesn't seem to fit very well with the clue?
25a: "Flying knight in Heart of Midlothian using a chopper" (2,3,4) o- t-e ---g
thought it might be "on the wing", but couldn't tie this in with the clue.
Thanks scotman and treetops1. I thought on the wing was the likely answer but couldn't get my head around all the clue. And cliff - I should have spotted that one coming! Thanks.