Related Clues:
- Well-caffeinated, perhaps
- 'Incoming!,' e.g
- Having ears cocked
- Weather advisory
- What fans are on, for upcoming shows
- Beer and porter, at heart, will make one dozy? The opposite
- Wide awake and on one's toes
- Bright-eyed and bushy tailed
- Wide awake and ready for anything
- ''Heads up!'' e.g
- Prepared to react
- Facebook notification, e.g
- Fashion designer McCartney
- Send a warning to
- Word after red or AMBER