Related Clues:

• Essence
• Olfactory input
• Get wind of
• Olfactory offense
• Kitchen enticer
• Cigar feature
• Lilac, e.g.
• See 25-Across
• Stink
• Carbon monoxide's lack
• Lead for a Lab
• Reason to ask 'What's cookin'?'
• Whiff
• Kind of therapy
• It may be left in a locker