Adult leaving anaemic kinky film (6)
I believe the answer is:
cinema
'film' is the definition.
(thesaurus)
'adult leaving anaemic kinky' is the wordplay.
'adult' becomes 'a'.
'leaving' indicates named letters should be taken away.
'kinky' is an anagram indicator.
'anaemic' with 'a' taken out is 'naemic'.
'naemic' anagrammed gives 'CINEMA'.
(Other definitions for cinema that I've seen before include "Film theatre" , "Where films are shown" , "(Building for) the movies" , "The flicks" , "Films, collectively" .)