Glowers (6)
I believe the answer is:
glares
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">glowers</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know this)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for glares that I've seen before include "Angry stares" , "Looks hotly and angrily" , "Stares angrily" .)