ANXIOUSLY CHEWING ON A TOOTHPICK, cloaked in a natty blazer, a white vest and with a silver chain dangling around his wrist, it’s fair to say Mark Ronson has got something of a Goodfellas vibe going on in 2014.

A couple of months ago, I was beckoned to Ronson’s Kings Cross studio by his ebullient PR, Barbara Charone. BC was particularly, firmly insistent I make the effort. Clearly, she knew something I didn’t.

If Ronson cut a nervous figure amid ...