Chic clique that often appears in magazine (5)
I believe the answer is:
inset
'that often appears in magazine' is the definition.
(separate feature inserted into a magazine)
'chic clique' is the wordplay.
'chic' becomes 'in'.
'clique' becomes 'set' (I've seen this before).
'in'+'set'='INSET'
(Other definitions for inset that I've seen before include "Place within" , "Put (one thing) into (another)" , "Part of picture" , "one image within another" , "Picture inside a larger one" .)