Cleverly is a solid technical boxer. Hes got good size for that weight class and has good hand speed. His power is not special, and hes got a solid jab. To win hes going to need to stay on the outside and work the jab then occasionally dig that right hand the body. Id say Kovalev ko's him though, Kovalev is a beast.
Are you referring to Bradley Pac or Bradley Provodnikov? Bradley fought Provodnikob several months ago in what was probably top 3 fights of the year; an absolutely war. He slid out with a close, but deserving decision. If you have any time to spare I'd suggest checking it out on youtube.
I think Marquez is going to take Bradley. He'll use his skills which are the best in the game.