Nude in musical shows (8)
I believe the answer is:
cabarets
'shows' is the definition.
(cabaret is a kind of show)
'nude in musical' is the wordplay.
'nude' becomes 'bare' (I've seen this before).
'in' is an insertion indicator.
'musical' becomes 'cats' (I've seen this before).
'bare' placed inside 'cats' is 'CABARETS'.
(Other definitions for cabarets that I've seen before include "Nightclubs with entertainment" , "Entertainments in nightclubs" , "Floorshows in restaurants and nightclubs" .)