Related Clues:

• Watchdog warning
• Mongrel sound
• Comb stopper
• Rover's warning
• Complication
• Sound that means 'Back off!'
• Tieup
• Terrier's threat
• Canine sound
• Hostile sound
• Angry growl
• Unhappy response
• Rush-hour problem
• Protruding knot on a tree
• Complicated situation