Related Clues:

• It's always on the top and never on the bottom
• Just on the surface it's never on the end
• Always on the top, never on the end
• It's always on the top, never at the bottom
• Never at the end, all on the surface
• Never at the bottom, always on the top
• On the outside - never 7 down
• On the outside, never at the end
• Always on the surface, never on the bottom
• It's all on top, but the end will do for 17 across
• Always on the top, never on the bottom
• Never at the bottom, always on the top (6)
• Always on top, never in the end
• Always on the top, never at the end
• A thin coat that often cracks