Clue: Terrier's audible warning

Answer: GRR

Length: 3

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Similar Clues:

• Subtle warning sound (AHEM with 4 letters)
• Warning sound (e.g. ALARM with 5 letters)
• Warning signal (e.g. ALARM with 5 letters)
• Warning of a sort (e.g. ALARM with 5 letters)
• Storm warning (e.g. ALARM with 5 letters)
• Warning sounds (e.g. ALARMS with 6 letters)
• Early-warning systems (ALARMS with 6 letters)
• Warning sound, once (ALARUM with 6 letters)
• Warning signal, once (ALARUM with 6 letters)
• Warning signal of old (ALARUM with 6 letters)