Crossword Genius

Scorn when judgement sees Catholic becoming rector (8)

Ross

I believe the answer is:

derision

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

'scorn' is the definition.
(thesaurus)

I cannot understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for derision that I've seen before include "'Ridicule, contempt (8)'" , "Mockery, ridicule" , "Contemptuous ridicule" , "Ironside (anag) - mockery" , "Contemptuous mockery" .)

I've seen this clue in The Independent.
Want a hint initially instead of a full solution? Install my app