Nude in an exotic act, just for show (7)
I believe the answer is:
cabaret
'for show' is the definition.
(cabaret is a kind of show)
'nude in an exotic act' is the wordplay.
'nude' becomes 'bare' (synonyms).
'in' means one lot of letters goes inside another.
'an exotic' indicates an anagram (an unusual form of the letters).
'act' with letters rearranged gives 'cat'.
'bare' inserted into 'cat' is 'CABARET'.
'just' is the link.
(Other definitions for cabaret that I've seen before include "In nightspot" , "Entertainment at night club" , "Nightclub entertainment, floor show" , "Film set in 1931 Berlin - floor show" , "Musical - nightclub entertainment" .)