Related Clues:

• Less-played 45 part
• Part of an LP
• Improbable hit
• Half an audio cassette
• Hit, on a 45
• Less popular song on a single, usually
• Back of a hit single
• Single half
• Reverse of a hit 45 record
• Flip of the flip?
• Audiotape's other half
• Less promising of two songs
• Wax half
• Lesser-played half of a 45
• 45's back