Related Clues:

• Film in a flue
• Laundry woe at the Claus home?
• Dirty coat in a chimney
• Flue grime
• Air polluter
• Fossil fuel residue
• It may be caught in the flue
• Dirty film?
• It turns Santa's suit black
• Smokestack buildup
• Diesel by-product
• Coat inside a chimney
• Pollution component
• Santa suit stainer
• Sweep's removal