Related Clues:

• Olfactory stimulator
• One may be disagreeable
• Olfactory lure
• It may be picked up in a locker
• Must, e.g.
• Olfactory stimulus
• Pizzeria allure
• Perfume attribute
• ''What died?'' provocation
• Gasoline additive
• Reason to bathe
• Freshness indicator
• Wine characteristic
• "What died?" provocation
• Nitrogen's lack