Bullies considered as best (6)

I believe the answer is:

beasts

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

'bullies' is the definition.
The definition and answer can be both people as well as being plural nouns.
Perhaps they are linked in a way I don't understand?

'considered as best' is the wordplay.
'as best' anagrams to 'BEASTS'.
But, I am not clear how this is indicated.

Can you help me to learn more?

(Other definitions for beasts that I've seen before include "Creatures; basset (anag.)" , "Fine animals" , "Basest sort of animals" , "Savages" , "Brutes" .)

I've seen this clue in The Mirror.

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.