Related Clues:

• Crow complaint
• Farm country avian cry
• Play loudly, as a 53-Down
• Make a harsh sound
• Call from a cornfield
• Bugler's blast
• Prime Minister on the radio? Blast!
• Screeching from Red Robbo's employers many years back
• Clamour created by ex-PM in speech
• Siren noise
• Cry from a crow
• Lay on, as a horn