Yarn coil (5)
I believe the answer is:
skein
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">yarn coil</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 skein that I've seen before include "Hank" , "Clock face" , "Loosely-coiled bundle of wool" , "Loosely coiled length of thread" , "Flock of flying geese" .)