Fine linen or cotton (4)
I believe the answer is:
lawn
<span class="explanation-format__ClueExplanation">I believe this is a double definition.<br/ ><br/ >'<span class="explanation-format__original">fine linen</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >'<span class="explanation-format__original">cotton</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(thesaurus)</span><br/ ><br/ ></span>
(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?" .)