Rough and ready fashion garment (9)
I believe the answer is:
makeshift
'rough and ready' is the definition.
(I've seen this before)
'fashion garment' is the wordplay.
'fashion' becomes 'make' (I've seen this in another clue).
'garment' becomes 'shift' (shift is a kind of garment).
'make'+'shift'='MAKESHIFT'
(Other definitions for makeshift that I've seen before include "temporary expedient" , "crude arrangement" , "temporary measure" , "Serving as a temporary and less adequate substitute for something" , "Interim, temporary" .)