Related Clues:

• Hard cover
• Pumpernickel periphery
• Pizza option
• Pie part
• Crisp covering
• Bread border
• PB&J no-no, for some
• Pizza part
• Pizza dough
• Pie edge
• It's rolled out at a patisserie
• Pie maker's pride
• Hard knowledge
• Pizza's outer edge
• Sicilian pizza has a thick one