The past week or so, he has looked better. He has the goals he put up, but he seemed to be moving up the ice quicker and throwing a few more hits than he had been. He also hasn't been out of position nearly as much as he had been earlier this season.
I definitely believe that he benefits greatly from having Lemaire around. He seemed to be able to get Clarkson to play better than we all thought he could play. Under Lemaire last season, he appeared to be on pace to score about 20 goals and 20 assists and that's certainly the best anyone could ever hope to get out of Clarkson.
Though with the injury to his ankle last year, I think he'll never be quite as strong on the puck as he was because I feel like he's not as confident in the strength of that ankle. He seems to be more hesitant to carry the puck through the zone like he used to, he barely fights anymore and this leads me to believe that he is concerned that doing those things might cause him to re-injure that ankle
That's my 2 cents on Clarkson.