Super-evil Machiavellian, nasty (9)

I believe the answer is:

repulsive

I'm a little stuck... Click here to teach me more about this clue!

'nasty' is the definition.
(thesaurus)

'super-evil machiavellian' is the wordplay.
'super-evil' can be anagrammed to 'REPULSIVE'.
However, I am unsure how this is indicated.

Can you help me to learn more?

(Other definitions for repulsive that I've seen before include "Disgusting" , "Abhorrent" , "ugly" , "Offensive" , "Loathsome" .)

I've seen this clue in The Telegraph.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.