Related Clues:

• ... thunder
• Tarzan's call
• Don't go quietly
• Speak loudly
• Summon a servant, maybe
• Be a good fan
• Sound from Thor
• React to pain, perhaps
• Try to induce an encore
• ''Gimme a C!,'' e.g.
• Speak to the hard-of-hearing?
• 'Gimme a C! ...,' e.g.
• Reward the cast
• Indicate approval
• ''Gimme a C!'' e.g.