Shaun Cassidy returns to the stage at City Winery: ‘It’s a beautiful mess’

Shaun Cassidy returns to the stage at City Winery: ‘It’s a beautiful mess’

Ask Shaun Cassidy what he does for a living, and he won’t claim to be a teen idol, a singer/actor or even a performer. Instead he prefers to think of himself as a storyteller. “I’m an introvert by nature and I probably wouldn’t have been a performer if I hadn’t been part of this family,” says Cassidy, who’s famously the son of actors Shirley Jones and Jack Cassidy and the half-brother of the late David Cassidy. “Even back when I was acting in ‘T…