Related Clues:

• Basis for discrimination
• Get mellow
• Big stretches
• Get along in years
• Touchy subject, to some
• Cardinal direction
• Sum of all years?
• It's just a number to some
• Urgent order
• Lifetime?
• Way to go, sometimes
• Secret of the vain, perhaps
• Toward China
• Watches the years go by
• Dating concern