Film-maker, a man working with trio (8)

I believe the answer is:

animator

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

'film-maker' is the definition.
I can't tell whether this definition defines the answer.

'a man working with trio' is the wordplay.
'working with' indicates anagramming the letters (working with the letters).
'man' with its letters mixed up with 'trio' can make 'nimator'.
'a'+'nimator'='ANIMATOR'

Can you help me to learn more?

(Other definitions for animator that I've seen before include "Film maker" , "Cartoon maker" , "Cartoonist in films" , "Person making cartoons" , "Park, perhaps" .)

I've seen this clue in The Independent.

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.