Related Clues:

• Border check
• Bowled out, possibly leg it for boundary
• Restrict - boundary
• Keep down
• Extreme point
• Outer extent
• Restrict to specified range
• Confine to specific boundary
• Space (maybe for a year?)
• Restrict — term
• It follows report of member, as far as it goes
• Generation separator
• "The sky's the ___!"
• Reason for braces, perhaps
• Place a maximum on