Wild bear in an animal show (7)
I believe the answer is:
cabaret
'show' is the definition.
(I know that cabaret is a type of show)
'wild bear in an animal' is the wordplay.
'wild' indicates an anagram.
'in' indicates putting letters inside.
'an animal' becomes 'cat' (cats are animals).
'bear' anagrammed gives 'bare'.
'bare' placed within 'cat' is 'CABARET'.
(Other definitions for cabaret that I've seen before include "Liza Minnelli's entertainment?" , "Bear cat (anag.)" , "goes on in nightclub?" , "Variety entertainment" , "Series of acts" .)