I tend to joke around a lot when these questions come up. Everybody has different opinions about what clean (or good) eating really is. The problem is that some guys get very OCD about the whole thing and end up hurting their gains in the gym because of it.
Really, I think the whole idea of clean eating is greatly overhyped. I know a lot of old people that are living great lives while still eating ice cream every night, eating processed foods, eating corn fed beef with hormones, etc...
These things will not magically make you fat or unhealthy. Sitting on your butt all day will.