Doesn’t stop the papers before one’s going off (7,2)

I believe the answer is:

presses on

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

'papers before one's going off' is the wordplay.
'papers' becomes 'press' (I've seen this before).
'before' means one lot of letters go next to another.
'going off' is an anagram indicator.
'ones' anagrammed gives 'eson'.
'press'+'eson'='PRESSES ON'

Can you help me to learn more?

(Another definition for presses on that I've seen is " Continues".)

I've seen this clue in the Evening Standard.

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