Fun crossword, though a little more Googling than I would have wanted to check that words exist (orographical, intaglio, the odd spelling backsheesh, and apartmental, which I don't think anyone ever uses to mean 'like a flat').
Can't see these ones:
1d In the compiler's ancient dictionary it's “with paint thickly applied” (9)
I?P?S?O?D
31a Recurring passages and runs spoilt trio Melba cut short (10)
?I?O?N?L?I