Bad breath (9)
I believe the answer is:
halitosis
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">bad breath</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that bad breath can be written as halitosis)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for halitosis that I've seen before include "repulsive pants?" , "Bad breath, smells unpleasant" , "Smelly breath" , "offensive condition" , "Foul breath problem" .)