Distemper (3,6)
I believe the answer is:
ill humour
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">distemper</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that distemper can be written as ill humour)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for ill humour that I've seen before include "bad feeling" , "bad temper" , "bad mood" .)