Related Clues:

• Cork, actually
• Lab output?
• Say ''Arf!''
• It may act as an intruder alert
• Initials may be carved into it
• Spaniel sound
• Spot's answer to "What's one plus one?"?
• Lab, for one
• Give orders like a drill sergeant
• Say 'bow-wow'
• Doggie
• Dog sound
• Dog barks
• Yap
• Canine complaint