Related Clues:

• Cell phone feature
• Eye-opener of a kind
• Clock/radio feature
• More than dismay
• Foghorn, e.g.
• Car buyer's option
• Bedside noise
• Bank feature
• Give a start to
• Sound a Klaxon
• Heart-pounding event
• Common cell phone feature
• Fill with fright
• Do ''Boo!'' to
• Loud get-up?