Related Clues:

• Bogeyman
• One trying a hiccups cure
• "Monsters, Inc." job
• Frightening sort
• One crying 'Boo!'
• Sudden loud noise, perhaps
• Fun house worker, maybe
• Son assigned helper, a terrifying sort
• One giving you a start
• 'Boo!' shouter
• Leader of strike with nurse: it's shocking
• "Boo!" shouter
• One causing fright