Related Clues:

• You may skip it
• Gallows sight
• Hierarchical chart
• Squirrels' hangout
• Swing support, perhaps
• It's stuffed with wood
• Cherry or chestnut
• Family diagram
• Shoe stretcher
• Cheshire cat's hangout
• Bird house?
• Ratline, e.g.
• Double Dutch prop
• Arboretum specimen
• Shoe saver