Seeking some answers for the following, please:
ACROSS:
13 Two pianos are for old man(7): ?R?N???
35 Bum steer, regularly? That's right( 4 ): ?S??
DOWN:
8 Rejects regressive idiot, one cutting tax(10):?????I????
19 Musical groups from Norway visiting fairly dry island(9): ?U???????
Many thanks in advance!