Related Clues:

• Red state?
• Cognisant
• Like a worthy watchdog
• Having knowledge of
• Having heightened senses
• APB, for one
• Gave a warning
• A serious one may be red
• Storm warning
• Emulate Paul Revere
• Plugged in
• Up from bed
• "Fore!" for one
• Academy newbie
• Give a heads-up to