Dunne has been missing this season due to injury.
Clark said: "He's got a level of experience that not many of the other lads in the Villa squad have got but we've just had to get on with him.
"Hopefully he can come back as soon as, and if he can get back before the end of the season that would be great. He's working with the physios and trying to get fit. He looks well.
"If he watches a game, he will talk to you and let you know what you need to. He's a nice lad like that, will offer his help and he is always there to talk to."