Sheep's coat of wool (6)
I believe the answer is:
fleece
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">sheep's coat of wool</span>' is the definition.<br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for fleece that I've seen before include "What shearer has to" , "Wool coat" , "Swindle; sheep's coat" , "Con" , "Rob by trickery, say sheep" .)