Graphic symbol (8)
I believe the answer is:
ideogram
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">graphic symbol</span>' is the definition.<br/ ><span class="explanation-format__explanation">(symbol representing an idea)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for ideogram that I've seen before include "Symbolic character" , "bit of kanji?" , "Symbol indicating idea of a thing, like number" , "Written character symbolising a concept or the thing itself" , "Symbol indicating idea, like road sign" .)