Related Clues:

• Cause a big stink?
• Do more than just smell
• Almost sing
• Good noise from an engine
• Cause a stink?
• Half-cut people murmur
• Refrigerator noise
• European doesn't have good smell
• Air-conditioning sound
• Hum Gluck's overture out of Iphigenia, say
• Smell unpleasant
• What city dumps do
• Have a repulsive 56-Across
• Smell horrifically
• Cause serious nose-wrinkling