Crisp fabric (7)
I believe the answer is:
taffeta
'crisp fabric' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for taffeta that I've seen before include "Glossy silk material" , "Lustrous silky fabric" , "Thin glossy silk fabric" , "fine material for dressing" , "Crisp, smooth, lustrous fabric" .)