Where Naomi's tale's told — about time, really (2,5)

I believe the answer is:

in truth

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'really' is the definition.
(synonyms)

I cannot understand how the rest of the clue works.

(Other definitions for in truth that I've seen before include "Really" , "Actually" , "As a matter of fact" , "Honestly" , "To be honest" .)

I've seen this clue in The Guardian.

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