Last seen in:
Related Clues:
- Not asleep at the wheel
- It can be red or amber
- Ready for sentry duty
- Warning providing by dealer trading
- Bitter winter frost ends, sharp
- See 134-Across
- Paying full attention
- Issue a warning to
- Like the best guard dogs
- On the lookout for drink at right temperature
- Incoming text ding, e.g
- Ready to react
- Definitely on one's toes
- Not likely to miss much
- Ding or buzz, maybe