Cantankerous, quarrelsome (12)
I believe the answer is:
disagreeable
<span class="explanation-format__ClueExplanation">This clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">cantankerous</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(thesaurus)</span><br/ ><br/ >'<span class="explanation-format__original">quarrelsome</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(thesaurus)</span><br/ ><br/ ></span>
(Other definitions for disagreeable that I've seen before include "Bad-tempered" , "Unpleasant" , "Offensive - peevish" , "Obnoxious" .)