Principal bullfighter (7)
I believe the answer is:
matador
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">principal bullfighter</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 matador that I've seen before include "who does for bulls" , "Spanish killer" , "Spaniard that fights" , "Performer in the Ring" , "Bullfighter who slays the bull" .)