Related Clues:

• Pain in the butt
• Rascally tyke
• Tart-tongued tyke
• Mischiefmaker
• Mole, e.g.
• Annoying type
• Kindergarten problem
• Gadfly
• Annoying one
• Little brother, maybe
• Yapping dog, e.g.
• D-Con target
• Bug bomb target
• Teacher's pest
• Babysitter's nightmare