### Clue: Perform unaccompanied, soprano having left for dancing partner (6)
### Answer: GIGOLO 
 ### Explanation: Definition: dancing partner
 GIG(to perform at a gig/a live performance by a musician or group) + "solo"(unaccompanied/by oneself) **minus**(… having left) "s"(abbrev. for "soprano").
Defn: A male escort paid or financially supported by a woman to be her partner at dancing, but often not just restricted to dancing.