Tom takes in nude show (7)
I believe the answer is:
cabaret
'show' is the definition.
(I know that cabaret is a type of show)
'tom takes in nude' is the wordplay.
'tom' becomes 'cat' (a tom is a male cat).
'takes in' is an insertion indicator.
'nude' becomes 'bare' (synonyms).
'cat' enclosing 'bare' is 'CABARET'.
(Other definitions for cabaret that I've seen before include "Bear cat (anag.)" , "Bob Fosse musical with Liza Minnelli" , "Floor show for Arab etc" , "Series of acts" , "Nightclub 12ac" .)