Related Clues:

• Worm's unit?
• Pants order spec
• Take tiny steps
• Soft drink specification
• Shoe seller's query
• Division on a 5-Down
• Shoe spec
• Stubborn people won't give one
• Worm size
• 1/12 of a foot
• Unit indicated by '
• Move very slowly
• Advance at a snail's pace
• Dress-label info
• Part of a foot?