Stocking stuff (5)
I believe the answer is:
nylon
'stocking stuff' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for nylon that I've seen before include "Polyamide" , "Artificial fabric" , "Artific ial (stocking) material" , "may be damaged by running" , "Man-made material" .)