Related Clues:

• It looks bad on the surface
• Keg contents
• Sign of disuse
• Sign of poor housekeeping
• It settles indoors
• Tidy up, in a way
• Motes
• Neatnik's bane
• Saw stuff?
• Fine powder
• Particulate matter
• It's something to sneeze at
• Sign of neglect
• Protect the crops
• Bunny makeup?