Answer:
Hoofed frolicking.
What is often returned but is never borrowed?
Surname of the pilot of the Millennium Falcon.
Three lives have I. Gentle enough to soothe the skin. Light enough to caress the sky. Hard enough to crack rocks.
I hide but my head is outside.
Iām grown from darkness but shine with a pale light. Very round I am and always a lady's delight.