Vehemence (10)
I believe the answer is:
fierceness
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">vehemence</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that vehemence can be written as fierceness)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for fierceness that I've seen before include "Ferocious quality" , "Violence" , "Passion" .)