While Cleverley still isn't showing the sort of controlled drive that he's capable of, as we know from some of what we saw from him in 2011/12, it is unfair to pretend he was somehow below average last night.
Chelsea played 4-6-0, flooding midfield with an eye to nicking a goal. Cleverley and Carrick were faced by a bunch of nippy, energetic midfielders who started the game closing down like Border Collies on a sheep farm and they stood up to the test. If Cleverley was as limited as some seem to be suggesting he'd have been bustled out of the game leaving Carrick exposed to the 6 man midfield onslaught. That didn't happen.
As a matter of fact Clev has played alongside Carrick in all the big games over the past year and his level only really dropped after the psychological blow of the Madrid home tie in the Champions League.
Let's give the guy some slack. He's years away from his peak. At Cleverley's age Arteta, whose absence is regarded as a key reason for Arsenal's so-so start, was moving to Everton after struggling at Sociedad. Players can get better. Give the guy a chance.