Slay (4)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">slay</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 kill that I've seen before include "bag?" , "Murder" , "Execute" , "Cause death" , "Destroy" .)