Crowd actor (5)
I believe the answer is:
extra
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">crowd actor</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for extra that I've seen before include "lesser player" , "Additional, more than expected" , "Minor actor in crowd scene" , "comes to 16 [TEST MATCH]" , "Bye or wide, for example" .)