Related Clues:

• May be 7 down, and that's flat
• It's not the former piano that's so flat
• Not the former piano that's so flat
• Not the former soft sound, and that's flat
• 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)'
• Attempt to get around a flat carrier
• The former piano is flat
• Lazy Susan, e.g
• Not the same all through, and that's flat
• Home at the park?
• Pentagon on a diamond
• Mess-hall carrier
• Serving platform