Crossword Genius

Upsetting part of sermon evoked rancour (5)

Ross

I believe the answer is:

venom

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

'rancour' is the definition.
The answer and definition can be both feelings as well as being singular nouns.
Maybe they are linked in a way I don't understand?

'upsetting part of sermon evoked' is the wordplay.
'upsetting' says the letters should be written in reverse.
'part of' says the answer is hidden in the clue.
'monev' is hidden within 'sermon evoked'.
'monev' written backwards gives 'VENOM'.

Can you help me to learn more?

(Other definitions for venom that I've seen before include "Poisonous liquid of snakes" , "ill will" , "Snake poison" , "Virulence" , "Poison - spite" .)

I've seen this clue in The Guardian.
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