Last season's player of the season has failed to reach the same heights as he did last year, but Clark maintains he has absolutely no doubts about his ability.
Burke was dropped in place of youngster Nathan Redmond for Tuesday's 3-3 draw against The Lions.
"I am a massive fan of Chris and I think he is an outstanding player," said the Blues boss. "He's an outstanding professional and lad and I get on really well with him.
"I just felt that Nathan Redmond had been doing well and Wade Elliott was unfortunate to be left out against Leicester City. I just wanted to give Chris a bit of a breather and get him firing on all cylinders again. That's something we will continue to assess and work on.
"It doesn't mean that because I left him out I have any doubts about him, I haven't, I have 100 per cent belief that he's a fantastic player and he's going to be a massive asset."