Woollen hood (9)
I believe the answer is:
balaclava
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">woollen hood</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for balaclava that I've seen before include "Crimean battle; hat" , "Woollen helmet" , "Close-fitting woollen head cover" , "Close-fitting woollen hood" , "Crimean village; woollen hat" .)