Termagant (5)
I believe the answer is:
shrew
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">termagant</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that termagant can be written as shrew)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for shrew that I've seen before include "Scold; insectivore" , "Small insectivore" , "Virago" , "Little mammal; a scold" , "Petruchio tamed one" .)