Related Clues:

• It's flat underfoot, flat in the water
• Basketball-shoe part
• Fillet fish
• ''Dover'' delicacy
• Underfoot?
• Cobbler's item
• Flat bottom
• High-class flounder
• Flat bottom?
• Certain seafood
• Only it is under a foot
• See 4
• Fish gets trodden on
• A swimmer - the only one to be seen
• Unique piece of footwear