Man concealing weapon in jacket, for example (7)
I believe the answer is:
garment
'jacket for example' is the definition.
(I know that jacket is a type of outerwear)
'man concealing weapon' is the wordplay.
'man' becomes 'gent' (gent is a kind of man).
'concealing' is an insertion indicator.
'weapon' becomes 'arm' (synonyms).
'gent' placed around 'arm' is 'GARMENT'.
'in' acts as a link.
(Other definitions for garment that I've seen before include "Piece of clothing" , "dress, perhaps" , "Vestment" , "Maybe a jacket" , "coat, say" .)