Related Clues:

• Sport from 4-Down
• Literally, empty hand
• Kind of chop
• Ring sport
• Dojo activity
• Japanese sport
• Olympics sport since 1904
• Hands-on defense?
• Dojo teaching
• Dojo's lesson
• Self-defense technique
• Self-defense method
• Olympic sport
• Ring activity
• Literally, 'empty hand'