Dorrans has struggled to secure a spot in the West Bromwich Albion team this season but Clarke believes that the midfielder is showing good character despite not featuring much on the pitch.
"Graham knows the situation," he told the Birmingham Mail. "He knows where he is and he works well in training every day.
"He actually asked to play in the last Under-21 game [against Liverpool]. He came to me and said 'Gaffer, I need a game'.
"That tells you he is in a positive frame of mind and wants to keep himself in good shape."
West Brom's next fixture comes against Crystal Palace on Saturday.