Related Clues:

• Founder
• Slope downward
• Walk, often lightly
• It may be worn on a sneaker
• Set, as the sun
• Succumb to quicksand
• Sneaker bottom
• Stair component
• Hole, as a putt
• Sneaker-sole surface
• Its gradual loss leads to baldness
• Piece between risers
• Washing-up place
• Go down like a rock
• Shoe surface