The 31-year-old arrived at Queens Park Rangers' ground Loftus Road last night in a bid to force through a move to the club, despite not receiving permission from the Baggies.
"I was very disappointed with yesterday's events," Clarke said in a press conference. "There was never a situation where Peter was not our player. I was surprised when he turned up at Loftus Road because he had not been given permission to do that.
"It is obvious there has been some form of misunderstanding by Peter of the situation, but West Brom never gave permission to QPR to speak to Peter.
"There was a moment when I thought a deal might happen. But it was total lunacy to turn up at QPR because the deal was not agreed. He jumped the gun. If I was Peter Odemwingie, I would be looking for new agents."