She doesn't believe in destroying coatings (8)

I believe the answer is:

agnostic

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

'she doesn't believe' is the definition.
I can't tell whether this definition defines the answer.

'destroying coatings' is the wordplay.
'destroying' indicates an anagram.
'coatings' anagrammed gives 'AGNOSTIC'.

'in' acts as a link.

Can you help me to learn more?

(Other definitions for agnostic that I've seen before include "Coasting as one who believes the mind cannot know anything of a god" , "He doesn't believe" , "Doubtful, non-committal" , "someone like Pyrrho" , "Believing that nothing can be known about the existence of God" .)

I've seen this clue in the Sydney Morning Herald.

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.