Related Clues:

• Evil intent
• Nuisance to Fido
• Boxer biter
• It's a chinch
• Head residents?
• Wingless parasite
• Pet problem
• Beagle biter
• Lyme disease transmitter
• Nocturnal nipper
• Insect in a circus
• Cause of head-scratching, perhaps
• Nit layer
• Word preceding "circus" and "market"
• Dog annoyance