Identifying characteristics (6)
I believe the answer is:
traits
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">identifying characteristics</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for traits that I've seen before include "Characteristics, quirks" , "Identifying features or qualities" , "Personality characteristics" , "Identifying characteristics" , "Distinguishing features" .)