Related Clues:

• Pit problem
• Unpleasantness for the nose
• Sign of a natural gas leak
• Airborne emanation
• What a smell!
• A foul smell
• Very offensive smell
• A really foul smell
• Unpleasant odour
• Nasty smell
• A really vile smell
• A really bad smell
• Olfactory sensation
• Strong offensive smell
• Offensive odour