Possible Clues:

• Changed one's tune, in brief?
• Helped out at a rave, e.g
• Spun records, say
• Played at work, for short
• Spun tunes at a party
• Spun records at a 15-Across
• Spun wax, say
• Mixed for a party, perhaps
• Served up platters, perhaps
• Provided party music