Related Clues:

• See 51-Across
• A three or a five, for instance
• Golf club
• Not an iron
• Caddie's offering
• Ebony or mahogany
• Furniture material
• See 63-Across
• Modeling medium
• Flooring material
• Carpenter's need
• Builder's need
• Whittler’s material
• Driving club
• Driver, for one