Wide-ranging knowledge supported by computer's data retrieval (6-3)

I believe the answer is:

spread-out

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'knowledge supported by computer's data retrieval' is the definition.
I can't judge whether this definition defines the answer.

'wide-ranging' is the wordplay.
'wide' becomes 'spread' (similar in meaning).
'ranging' becomes 'out' (I am not sure about this - if you are sure you should believe this answer much more).
'spread'+'out'='SPREAD OUT'

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I've seen this clue in The Independent.

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