Crossword Genius

Preposterous list often added to with conviction? (8,6)

Ross

I think it could be either:

Which length description are you looking for?:

8

8,6

criminal record

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'preposterous list often' is the definition.
I don't know anything about this answer so I can't judge whether this works.

'added to with conviction?' is the wordplay.
'added to' becomes 'criminal' (I am not sure about this - if you are sure you should believe this answer much more).
'with' says to put letters next to each other.
'conviction?' becomes 'record' (a criminal conviction entails a criminal record).
'criminal'+'record'='CRIMINAL RECORD'

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I've seen this clue in The Guardian.
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