Related Clues:

• Nose
• One who peeps, perhaps
• Pesky neighbor
• Poke (around)
• Prying sort
• Be too inquisitive
• Eavesdrop or eavesdropper
• Get your nose into someone's business
• Nosy type
• Nero Wolfe, for one
• Stick one's nose in
• Work as a shamus
• Inquisitive sort
• Mind someone else's business
• Imitate a private investigator