Related Clues:

• Toto's two?
• It may be worse than a bite
• Pair of boxers?
• Lab alert?
• 'Woof!,' e.g.
• Guard dog's warning
• Canine comments
• 'Speak' response
• Dog's sound
• Woofer's output?
• "Speak" response
• Where you might see some initials
• Reaction from one who has a bone to pick?
• Dog's cry
• Kennel double talk?