Related Clues:

• Indicator of freshness
• Liederkranz cheese quality
• Censer output
• Burnt popcorn trait
• Gas additive, perhaps
• Foul scent
• Dumpster attribute, often
• Tour bus "feature"
• Stage outfit feature
• Performance side effect
• Tour bus bouquet
• What "That Smell" was about?
• Tour bus may have this
• The harder you rock, the stronger this gets
• Public Enemy "New Whirl ___"