Related Clues:

• Outer surface about to corrode
• Sicilian border?
• See 74-Down
• Planetary layer
• Pie cover
• Vineyard's given good man livelihood
• Piece of pizza?
• Pizza's perimeter
• Picky kid's peeling
• Pizza base
• A piece of the pie?
• Weird Al: "Matter of ___"
• Sadist pizza song?
• Sarcofago pizza song?
• Mantle's cover