Griezmann has struggled for consistency in his first season with Barca amid reports he's struggled to get along with captain Leo Messi.
But Clement told Le Parisian: "No, Antoine is well integrated in the locker room, there is really no problem.
"On the field, he himself knows he can do better. But we must not forget his statistics. He still scored 14 goals and delivered several assists (four). For a first season, it's not bad.
"But as Antoine, in a different style, was better at Atletico, he is a player with whom we are very demanding. But I see him working hard in training, he can only get better.
"I'm sure everything will be fine for Antoine at Barça. It's always the same when a Barça striker does not score for two games, it is because he is in trouble. When he scores two goals, we will say that Super-Antoine is back."