Related Clues:

• Troublesome insect
• Obnoxious person
• Goofball
• Boob
• 10 Across or 49 Across
• Flea, e.g.
• Sitter's challenge
• Pain in the butt
• Mole, e.g.
• Annoying type
• Gadfly
• Annoying one
• Little brother, maybe
• Silly fellow
• Yapping dog, e.g.