Some preventing upset with word of denial (5)

I believe the answer is:

never

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'some preventing upset with word of denial' is the definition.
I can't judge whether this defines the answer.

'some preventing upset with' is the wordplay.
'with' indicates a hidden word.
'upset' says the letters should be written backwards.
'reven' is hidden in the letters of 'some preventing'.
'reven' backwards is 'NEVER'.

Can you help me to learn more?

(Other definitions for never that I've seen before include "Not ever" , "No way" , "when pigs fly" , "Surely not" , "On no occasion" .)

I've seen this clue in The Telegraph.

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