Related Clues:

• Practice one's blows
• Practice jabs and hooks
• Engage in debate
• Rigging pole
• Shadowbox, e.g.
• Box without a ref
• Have a debate
• Trade barbs
• Go toe-to-toe
• Airplane wing supporter
• Mast, yard, boom, or gaff
• Fight, but not all-out
• Pole used in rigging
• Practice on canvas
• Practice one's punches