Dour (4)
I believe the answer is:
grim
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">dour</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that dour can be written as grim)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for grim that I've seen before include "Tight-lipped and foreboding" , "Severe; horrible" , "Frightful" , "Resolute" , "Dismal, dour" .)