Roughly equivalent in cable or map version (10)

I believe the answer is:

comparable

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'roughly equivalent' is the definition.
'comparable' can be an answer for 'equivalent' (thesaurus). I am not certain of the 'roughly' bit.

'cable or map version' is the wordplay.
'version' is an anagram indicator.
'cable'+'or'+'map'='cableormap'
'cableormap' with letters rearranged gives 'COMPARABLE'.

'in' acts as a link.

Can you help me to learn more?

(Another definition for comparable that I've seen is " Similar".)

I've seen this clue in the Sydney Morning Herald.

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