Crossword Genius

Waste paper until reaching early agreement (10)

Ross

I believe the answer is:

prenuptial

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

'reaching early agreement' is the definition.
I can't tell whether this defines the answer.

'waste paper until' is the wordplay.
'waste' indicates anagramming the letters (I've seen 'wasted' mean this).
'paper'+'until'='paperuntil'
'paperuntil' with letters rearranged gives 'PRENUPTIAL'.

Can you help me to learn more?

(Another definition for prenuptial that I've seen is " before marriage".)

I've seen this clue in The Daily Express.
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