Related Clues:

• 1960 satellite launch
• The boom after the flash
• Returned call?
• Repeat
• Large bell's sound
• Yodeler's elicitation
• Off-the-wall feedback?
• Lingering trace
• Me-tooer
• Return from the hills
• Signal at a pagoda, maybe
• Come again?
• Double talk?
• Resounding?
• Alpine reflection