(of a person) independent, with unusual opinions (Oxford)
a person who thinks and acts in an independent way, often behaving differently from the expected or usual way (Cambridge)
He is a politician with a maverick streak. (Oxford)
He was considered as something of a maverick in the publishing world. (Cambridge)
with a maverick streak
maverick in the publishing world
Radical
Exemplary
Conservative
Moderate
Maverick