Related Clues:

• Canyon comeback
• Reverberate
• Recording effect
• Iterate
• Baba for 20-Across
• It's been said before
• Gilda's Baba
• Muted effect
• Electric guitar attachment
• Bat's navigation aid
• It may bounce off walls
• Bounce back
• Unoriginal reply
• Resounding response
• It may be off the wall