Fabric made from flax (5)
I believe the answer is:
linen
'fabric made from flax' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for linen that I've seen before include "Material made from flax" , "Sheets, tablecloths etc" , "given blanket coverage" , "Spun fibres of flax" , "Cloth woven flax fibres" .)