Many thanks Chrise - both hints were very helpful. I've cracked on but had to break to cook and eat dinner. Just three left
3d. Joint group of musicians set up (5) I have ?E?O?
25ac. Stimulating originally, if not dull (7)
I have S?N???S Just got that one!!!
18d. Flyer detailed every second part of final figures (8)
I have T?A?E?I? Is the definition a bird?
Just two to get now.