No matter how average Clarke is, he is still better than Babic, Babic has a non-existent defense and Clarke would know how to use it.
Clarke is the worst of the recent crop of British top amateur heavyweights, there's a reason why Joshua and then Joyce were picked ahead of him for London and Rio Olympics, he's simply not that good. But Babic is nothing but a journeymen with some good marketing mixed with a fun style. Clarke KO's him early.
Babic's chin has been cracked and his novelty act has passed. Clarke stops him at some point. Babic is too open and his punch resistance has left town.
Babic is absolutely shot beyond belief. I've never seen a more shot fighter in all my years as a fan of the sport. He was a special talent in his prime but all the wars, the gym wars, and injuries have taken a huge toll on him, so much so that I can even see lower top 10 guys beating him now Clarke's a good guy and he's on his own path and I know for a fact has enormous respect for The Savage and wouldn't take the fight out of that respect he has for him