Answer:
Surname of the pilot of the Millennium Falcon.
What has a single eye but cannot see?
A morbidlyยญ-named body of water
What has three ways out and just one way in?
What force and strength cannot get through. I, with a gentle touch, can do. Many in the street would stand. Were I not a friend at hand.
Before I grow I'm small. When I'm old I grow tall. When I die I give a mighty fall.