Related Clues:

• Sleep stopper
• Daily ringer
• Smoke detector, e.g
• Burglar's worry
• Clock-radio signal
• Dream spoiler
• Make panic
• Device with a snooze button
• A large weapon creates terror
• Smartphone clock function
• Function under 'Clock' on an iPhone
• Warning: city cutting supply
• Marine-style wake-up call?
• iPhone clock feature
• Snooze stopper