Related Clues:

• Oak or pine
• The end of one's rope?
• It has bark but no bite
• Wrangler's rope
• Roper's rope
• Hierarchical chart
• Squirrels' hangout
• Swing support, perhaps
• It's stuffed with wood
• Cowpoke's rope
• Cherry or chestnut
• Family diagram
• Shoe stretcher
• Cheshire cat's hangout
• Bird house?