Flax product (7)
I believe the answer is:
linseed
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">flax product</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(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" .)