Unwisely known as the one from N-Dubz who ‘doesn’t do anything’, 25 year-old Fazer, has spent the last 11 years substantiating his skills. One look at any of the trio’s album sleeves and you’ll see Richard Rawson stamped all over the credits. The self-taught piano playing rapper, songwriter and producer sits down with Danny Walker to discuss submitting tracks for Rihanna, Sky’s The Limit and not being allowed to the Killer video casting…