Curse after the setter gets new clothes (8)
I believe the answer is:
menswear
'clothes' is the definition.
(I've seen this before)
'curse after the setter gets new' is the wordplay.
'curse' becomes 'swear' (synonyms).
'after' is a charade indicator (letters next to each other).
'the setter' becomes 'me' (the person who set this crossword).
'gets' means one lot of letters go next to another.
'new' becomes 'n' (common abbreviation eg NT for New Testament).
'me'+'n'='men'
'swear' after 'men' is 'MENSWEAR'.
(Other definitions for menswear that I've seen before include "Traditionally suits, shirts etc." , "clobber" , "Male clothes" , "Male attire" , "Ties, say" .)