Rug for musical section (9)
I believe the answer is:
hairpiece
'rug' is the definition.
(I've seen this before)
'musical section' is the wordplay.
'musical' becomes 'hair' (p960s musical).
'section' becomes 'piece' (I've seen this before).
'hair'+'piece'='HAIRPIECE'
'for' acts as a link.
(Other definitions for hairpiece that I've seen before include "A wig or switch to supplement scalp covering" , "rug" , "Switch, for instance" , "False addition to existing growth on the head" , "Using switch" .)