Related Clues:

• Lab alert
• Some night sounds
• Sailing vessels
• Doorbell responses, sometimes
• Lab warning
• Warning from a doghouse
• Small sailing ship
• Cork, actually
• Say ''Arf!''
• It may act as an intruder alert
• Initials may be carved into it
• Spaniel sound
• Give orders like a drill sergeant
• Say 'bow-wow'
• Dog sound