Related Clues:

• Outer edge of a wheel
• 'Brim, lip (3)'
• Brim, lip
• Might one place an ant on top of it?
• At the players, but never in the thick of it
• The in the middle, not in the middle
• Nothing in here
• 19 down
• For the cockney, that's a hedge
• You'd be all on edge here
• This has one all on edge
• It's all on edge
• That's where it has one all on edge
• At the one that gets three for one score for 21 across
• Reach the team, but not in the midst of it