Related Clues:

• Operagoer's shout
• Audience's joyful shout
• Great British PM in Australia promoting queen
• Encouraging cheer
• Well done, coming ahead of Charlie!
• Congratulations for assassin
• Exclamation that's also the name of a cable channel
• International Call Sign: appreciation shown at the opera
• "Great performance!"
• Cheer heard at the opera
• Relative receives top grade — very well done!
• Encouraging word from Charlie's predecessor
• Opera outburst
• A curtain call cry
• Supporter: 'Five-nil? Well done!'