Related Clues:
- Arouse to a sense of danger
- Device to signal danger
- Frighten or startle
- Clock that wakes the sleeper
- Scare with warning device
- Warning sound or signal
- Noise that wakes
- Device sounding danger
- Scare or worry
- Frighten, scare
- Strike fear
- Clock that wakes you up
- This clock wakes you up
- It signals danger
- Sudden apprehension and fear