Whip mark (4)
I believe the answer is:
welt
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">whip mark</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 welt that I've seen before include "Fire(place)" , "Raised mark on the skin" , "narrow ridge" , "After blow, Mark" , "Wound from lash" .)