Conventionalised image (10)
I believe the answer is:
stereotype
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">conventionalised image</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 stereotype that I've seen before include "model" , "cast" , "Conventional image" , "Sort of plate" , "Pigeonhole" .)