Related Clues:
- Devices to signal danger
- Frightens, scares
- Frightens, makes afraid
- They signal danger
- Puts on guard or frightens
- Scares with warning devices
- Frightens or alerts
- Frightens like warning devices
- Frightens and startles
- Alerting devices - burglars?
- Warning clocks that wake us up
- Scares or startles
- Scares, hopefully burglars
- Causes fear
- Half a hundred limbs? That's a frightful lot.