Annoy or anger (8)
I believe the answer is:
irritate
<span class="explanation-format__ClueExplanation">I believe this clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">annoy</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I know that annoy can be written as irritate)</span><br/ ><br/ >'<span class="explanation-format__original">anger</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(thesaurus)</span><br/ ><br/ ></span>
(Other definitions for irritate that I've seen before include "bug" , "Vex, aggravate" , "Wind up" , "Anger, annoy" , "Nark" .)