Related Clues:

• Break-in indicator
• Clatter
• Ear-splitting situation
• Surprise big-time
• Rousing ringer
• Security device
• Car antitheft device
• Huge racket
• Noisy disturbance
• Concentration thwarter
• Clock signal
• Home security component
• Aural overload
• Word with ''smoke'' or ''fire''
• Waker-upper