Related Clues:

• Simple tool user
• 'I'm listening'
• Lummox
• Clumsy one, slangily
• Mock, in a way
• One way to go
• Monkey's uncle?
• Hired heavy
• Tailless primate
• Evolutionist's kin?
• Hired thug
• One of Goodall's group
• Tarzan pal
• Going ___
• J. Fred Muggs, for one