"Measure for Measure" villain (6)
I believe the answer is:
angelo
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">measure for measure villain</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 angelo that I've seen before include "Duke's deputy" , "Italian male name meaning messenger" , "See 5" , "Shakespearean role" , "Man" .)