Related Clues:

• Nursery items
• See 4-Down
• See 51-Across
• A three or a five, for instance
• Plain lack
• Golf club
• Not an iron
• Caddie's offering
• Arbor Day honorees
• Ebony or mahogany
• Furniture material
• See 63-Across
• Walnuts and others
• Corners
• They're for the birds