donovan
n. countable C2 Proficiency US //ˈdɑnəvən// dono·van
n. a person who is very good at something or acts like a leader. It is a casual way to call someone a 'boss' or a 'legend'.
n. a person of high status, skill, or authority within a specific social or professional circle. Slang in register; functions as a synonym for 'boss' or 'leader' in informal British English.
He is a total donovan on the football pitch.
Everyone listens when he speaks because he is the donovan of the local music scene.
While he lacks a formal title, his influence over the community makes him the undisputed donovan of the neighborhood, settling disputes and organizing events with ease.
Usage
Primarily used in British slang to denote a person of importance or high skill.