Garment industry (3,5)
I believe the answer is:
rag trade
'garment industry' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for rag trade that I've seen before include "The couture business" , "dressmaking competition" , "Commonly, the clothing business" , "Clothing business (colloq.)" , "Clothing business (informal)" .)