Related Clues:

• Nose-wrinkling stimulus
• It'll stink up the place
• It all comes out in the wash
• Smell real bad
• Neon's lack
• Malodor
• 34 Across trait
• Olfactory challenge, at times
• Olfactory stimulant
• Nasal appraisal
• Outhouse issue
• Stimulator of canine curiosity
• It could be fishy
• Smell like garbage
• Gas-leak clue