Related Clues:

• Track of waves
• Evidence of a tornado's path
• Stop dozing
• Come around
• Come out from under?
• React to an alarm
• Rouse from slumber
• See the light?
• Path left behind
• Water line?
• Danger for small craft
• Stop sleeping, with "up"
• Hear the alarm
• Waves behind a ship
• Come out of a coma