Related Clues:

• Treat with a crust
• It may be tough to crack
• Hierarchical chart
• Squirrels' hangout
• Swing support, perhaps
• Pizzeria buy
• It's stuffed with wood
• Slapstick missile
• Key lime or Dutch apple
• Cherry or chestnut
• Horner's dessert
• Family diagram
• Shoe stretcher
• Cheshire cat's hangout
• Flaky dessert