Related Clues:

• 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
• A red one is concerning
• Air raid signal, e.g
• Notification, e.g
• Phone pop-up
• Hyperaware
• Red ___ (emergency status)
• Signal change when head of state takes more central role
• Awake