Monstrous female (6)
I believe the answer is:
ogress
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">monstrous female</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for ogress that I've seen before include "Frightful woman" , "Man-eating giantess" , "Scary female" , "Harridan" , "Female monster" .)