Reading of exchange with no deception (7)

I believe the answer is:

version

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'reading' is the definition.
(a reading can be an interpretation or version)

I don't understand how the rest of the clue works.

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(Other definitions for version that I've seen before include "Description from a certain point of view" , "Rendition" , "Rendering" , "Model" , "See 24" .)

I've seen this clue in The Telegraph.

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