Related Clues:

• Hard wood
• See 14-Across
• Hackberry's kin
• Symbol of strength
• Shade maker
• House shader
• Word after American or rock
• Source of 85-Down
• Kind of tree
• Furniture material
• Iowa's state tree
• 'Red' or 'white' tree
• Yellow-ribboned tree
• Squirrel's home
• Tough wood