Fine linen or cotton (4)
I believe the answer is:
lawn
I believe this is a double definition.
'fine linen' is the first definition.
(I've seen this in another clue)
'cotton' is the second definition.
(thesaurus)
(Other definitions for lawn that I've seen before include "Type of thin linen or cotton" , "Fine woven cotton" , "Linen fabric" , "Stretch of grass" , "sleeves composer?" .)