Crossword Genius

The smelly pants? (9)

Ross

I believe the answer is:

halitosis

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'the smelly pants?' is the definition.
Although both the answer and definition are singular nouns, I don't see how one could define the other.

This is all the clue.

Can you help me to learn more?

(Other definitions for halitosis that I've seen before include "repulsive pants?" , "offensive condition" , "Bad breath, smells unpleasant" , "Foul breath problem" , "Smelly breath" .)

I've seen this clue in The Sun.
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