Fine parchment (6)
I believe the answer is:
vellum
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">fine parchment</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for vellum that I've seen before include "Heavy cream-coloured paper or parchment" , "What was written on" , "Kind of fine parchment for writing" , "Heavy cream-coloured writing paper" , "Fine parchment made from calf-skin" .)