Related Clues:

• All 45s, now
• Criteria
• Radio-station format
• Seniors
• Songs often sung by 67-Across
• Blasts from the past
• Guidelines
• Golden songs?
• Songs that bring back memories
• Jukebox faves
• Flags for bases of measurement
• Benchmarks, norms (9)
• Norms in flags?
• Norms for flags
• Benchmarks, norms