Hardly a clanger, he was under pressure with a Celtic player closing him down, didn’t have time to control the ball and tried the short pass rather that a punt.
As has been said before it’s the type of pass that is made and messed up by other players throughout a game but since it seldom leads to a goal is forgotten about and if it had came off would have taken five Celtic players out of the game - risk and reward.
Trying to punt it could have led to it being charged down by the Celtic player rushing in on him leading to a goal anyway as is seen sometimes in games.
So in short, yes it was a poor and unfortunate pass and percentage wise probably the wrong choice but in my view not a clanger.