Related Clues:
- Smartphone pop-up
- Distant relation needs to be up, keeping on the ball
- Email ___
- 'The Circle' notification
- Urgent notice
- App notification
- On one’s guard
- Far from asleep on the job
- Listening with eyes darting to and fro
- Opposite of drowsy
- Word after 'spoiler' or 'news'
- Weather notification, perhaps
- Watchful as lazy employee reads tabloid at first
- Phone notification
- A red one is concerning