Collar extension (5)
I believe the answer is:
lapel
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">collar extension</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for lapel that I've seen before include "top of coat" , "Lower part of collar on coat" , "Extended part of a collar" , "Turnover at the front of a coat" , "Continuation of a coat collar" .)