Related Clues:

• Two drinks, for some
• Rule of the road
• Betting ceiling
• Angler's maximum
• What drivers should be aware of
• Something not to go over
• 55 or 65, often
• Economist's cap
• The sky, it's said
• Credit cap
• "___ one per customer"
• Outer boundary
• Calculus concept
• [White]
• Boundary can restrict