Silk netting (5)
I believe the answer is:
tulle
'silk netting' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for tulle that I've seen before include "Fine net fabric used for hat trimming, etc." , "Net material (for veils)" , "Thin material" , "What veils the bride" , "that may be around one's body" .)