Crossword Genius

Salesperson breaks verbal contract made up for customers (9)

Ross

I believe the answer is:

prepacked

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'made up for customers' is the definition.
The answer and definition are different parts of speech. However, past participle verbs and adjectives can occasionally mean the same thing.

'salesperson breaks verbal contract' is the wordplay.
'salesperson breaks' becomes 'pre' (I can't justify this - if you can you should believe this answer much more).
'verbal' indicates a 'sounds like' (homophone) clue.
'contract' becomes 'pact' (I've seen this in another clue).
'pact' is a homophone of 'packed'.
'pre'+'packed'='PREPACKED'

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I've seen this clue in The Independent.
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