Related Clues:

• Words to an audience
• Stage remark
• Parenthetical comment
• Partner
• Offhand remark
• Top of a platter
• 'Penny Lane,' not 'Strawberry Fields Forever'
• Digression
• See 5-Across
• Words to no one in particular
• Much-played part of a 45
• 'All kidding ___...'
• In reserve
• See 34-Across
• Stage comment