Heraldic device (6)
I believe the answer is:
emblem
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">heraldic device</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 emblem that I've seen before include "Device, badge or symbol" , "Symbol; heraldic device" , "Symbol, device that represents something" , "Symbolic device or badge" , "Symbolic object" .)