Became established as a clique, being fashionable (3,2)
I believe the answer is:
set in
'became established' is the definition.
(I've seen this in another clue)
'a clique being fashionable' is the wordplay.
'a clique' becomes 'set' (a clique is a social set).
'being fashionable' becomes 'in' (in can mean fashionable or trendy).
'set'+'in'='SET-IN'
'as' is the link.
(Another definition for set in that I've seen is " Become established".)
Want a hint initially instead of a full solution?
Install my app