Who is Cleverman?
I'm trying to find more information about the traditional Cleverman, but all of my searches so far ended up being about the series.
Who or what is Cleverman? What is his connection to the Dreamtime?
A whole book has been written about the Cleverman, title Aboriginal Men Of High Degree by A.P. Elkin. Elkin was a anthropologist who actually lived with the tribes to get the knowledge. The Cleverman has the power of weather control, curing illness, hypnotism, the strong eye, visiting the Sky-world and so much more. He has magical powers of invisibility, psychic displays, clairvoyance and telepathy. The life of the tribe revolved around this spiritual man.
Great answer! *(I took the liberty of finding citations from the book for the powers you mention to support the answer :)* Welcome to Mythology!