Skirt's fold (5)
I believe the answer is:
pleat
'skirt's fold' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for pleat that I've seen before include "Gather" , "Leapt (anag)" , "Crease" , "Double fold in a garment" , "Fold in a skirt" .)