Related Clues:

• Exemplar of might
• Sturdy building material
• Cask material
• Bucket material, often
• Squirrel's hangout
• Timber tree
• Mighty tree
• Balsam, e.g.
• Mature acorn
• Squirrels' hangout
• Plywood source
• See 28 Across
• Maryland emblem
• Symbol of sturdiness
• Solid wood