Actor Schwarzenegger (6)
I believe the answer is:
arnold
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">actor schwarzenegger</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 arnold that I've seen before include "Headmaster, poet or composer" , "-- Wesker, playwright" , "Essayist" , "Sir Malcolm -, English composer" , "Another poet" .)