Related Clues:

• Anniversary, e.g.
• Go steady with
• Number in a letter
• Do carbon-testing on
• 2001, for one
• See 64-Across
• Whom one goes out with
• Go with
• Four quarters
• Period of time
• Wine connoisseur's concern
• '00, e.g.
• Subscription length, often
• Tropical fruit
• See 54-Across