Possible Clues:

• First class young lad has nothing for self-defence in Japan
• Excellent child with love for form of martial art
• First class fool has nothing as form of self-defence
• Self-defense skill
• First class takes one of the farm animals and duck as form of self-defence
• Art of throwing a little butter in middle of onions
• Japanese martial art with holds and throws
• Alternative to judo
• First-class lad with love for martial art
• Japanese self-defense