Distinguishing badge (8)
I believe the answer is:
insignia
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">distinguishing badge</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 insignia that I've seen before include "marks" , "Badge worn to show official position" , "Badges of office" , "Badge or emblems of office" , "military mark" .)