Small notch (4)
I believe the answer is:
nick
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">small notch</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 nick that I've seen before include "Slight cut" , "jail" , "cooler" , "Catch" , "Take" .)