Related Clues:

• Just on the surface, and that's flat
• The sort of river that's flat
• May be 7 down, and that's flat
• Might R cause you to have under a cup of it?
• Precious only on the outside, and that's flat
• Dead at last, but it's all on the surface
• 'On the outside only, and that's flat of late at last (5)'
• Not the same all through, and that's flat
• Home at the park?
• Pentagon on a diamond
• UFO, maybe
• Limoges item
• Cup's companion
• China cabinet item
• Commemorative item