Continuation of a coat collar (5)
I believe the answer is:
lapel
'continuation of a coat collar' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for lapel that I've seen before include "Turnover at the front of a coat" , "Folded-back part of coat" , "top of coat" , "Fold of coat" , "Jacket fold" .)