Sheepskin (6)
I believe the answer is:
fleece
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">sheepskin</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that sheepskin can be written as fleece)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for fleece that I've seen before include "Swindle; sheep's coat" , "Sheepskin - rook" , "Woolly coat of a sheep" , "A sheep's woolly coat" , "A sheep's wool coating" .)