Related Clues:

• Component of a cloud, perhaps
• Kindergarten problem
• Tiny nuisance
• Teacher's pest
• Buzzing nuisance
• Babysitter's nightmare
• Punkie, e.g.
• Stinging insect
• Holy terror
• Little bugger
• Small fly
• 4-Down, e.g.
• Inconsequential irritant
• Little annoyance
• Puny pest