Apparel not in the closet with suit (6)
I believe the answer is:
outfit
'apparel' is the definition.
(outfit is a kind of apparel)
'not in the closet with suit' is the wordplay.
'not in the closet' becomes 'out' (I've seen this in another clue).
'with' says to put letters next to each other.
'suit' becomes 'fit' (synonyms).
'out'+'fit'='OUTFIT'
(Other definitions for outfit that I've seen before include "what to wear?" , "Equip for an enterprise" , "Organisation or set of clothing" , "Organistion or set of clothing" , "suit" .)