Related Clues:

• It may bounce off walls
• Reproduce
• Bounce back
• Unoriginal reply
• Resounding response
• It may be off the wall
• Tailless primate
• Evolutionist's kin?
• Sonar comeback
• One of Goodall's group
• Off-the-wall comeback?
• Tarzan pal
• Going ___
• J. Fred Muggs, for one
• Barbary ___