How do you get to the clock tower in Harry Potter 3 for Playstation 2?

In "Harry Potter and the Prisoner of Azkaban" for PlayStation 2, to reach the clock tower, you need to first explore the Hogwarts grounds and collect the necessary spells and items. Once you have the spell to unlock the door, navigate through the castle, using platforms and avoiding enemies. Look for the door that leads to the clock tower area, and after entering, follow the path to progress through the level. Be prepared to solve puzzles and defeat any obstacles you encounter along the way.