The one who kills the bull (7)
I believe the answer is:
matador
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">the one who kills the bull</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 "fighter in the ring?" , "The one who kills the bull" , "he aims to get a bull" , "Spaniard that fights" , "Spanish killer" .)