Tablecloth material (5)
I believe the answer is:
linen
'tablecloth material' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for linen that I've seen before include "Flaxen cloth" , "Fabric woven from flax fibres" , "Flax product" , "Sheets, cloths, napkins etc" , "bedding" .)