Related Clues:

• Shoe cushion
• One and only
• Shoe part that's wiped on 23-Down
• It's under a foot
• A fish out of school?
• Lone
• Pump liner
• Decorative fabric
• Oxford foundation
• Irish export
• Lemon ___
• Tablecloth material
• Tatter's output
• It's under foot
• "Arsenic and Old ___"