Related Clues:

• Nautical yard
• Sail support
• "LOVE ---" (O'Jays, 1973)
• Practice punching
• Boom, e.g.
• Boom or box
• Practice pugilism
• Prepare for the ring
• Argue
• It's right on track
• Translucent mineral
• Practice one's one-two
• Show the ropes
• Lock horns
• Mix it up