Clear Jerry can be considered to be an enhanced version of Jerry. The "Clear Goggles" that Clear Jerry wears allows him to see invisible objects such as Vanishing Tom. These goggles can also repel dirtiness, allowing Clear Jerry to stay clean. These goggles do not prevent cases of self-dirtiness, however. Once the goggles get dirtied up, Clear Jerry cannot see invisible objects anymore, and he must clean them in order to use them again.
It has been said that Clear Jerry is actually Jerry's alter ego, and that this ego is triggered by putting on glasses.