Flax product (7)
I believe the answer is:
linseed
'flax product' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for linseed that I've seen before include "Enisled (anag.)" , "Oil-producing plant" , "Source of plant oil" , "Treatment for bats" , "Flax plant product providing oil" .)