To reach this chest in The Way of the Fist in the Clock Tower, you must first go up the left side of the room and look for an anchor after a trio of falling blocks.

From there, swing over to the northeast and then you can come back down on the east side of the room.

As you do, there will be multiple blocks trying to crush you from the sides so you must be quick, remembering to activate Holy Light to phase through the Chaos Shards.