Not to mention the wing supply lines or Bill Harris but Peacock was always tall, maybe very tall where as Clough was not more than average height.
You would think that Clough would have some advantage of height or speed but in reality he had neither. His one remarkable ability was to take a ball being passed up to him turn and hit the target all in one movement. You can argue it is similar to Messi but Clough used to start with his back to goal and somehow add acceleration also.
He was also absolutely ruthless in and around the penalty area and all the stories you hear about people being pushed out of the way are probable true - he was just focused on his "job"