Fresh eggs let outside (9)

I believe the answer is:

renovated

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'fresh' is the definition.
Both the answer and definition are adjectives. Perhaps they are linked in a way I don't understand?

'eggs let outside' is the wordplay.
'eggs' becomes 'ova' (term for egg cells).
'let' becomes 'rented' (I've seen this before).
'outside' indicates putting letters inside.
'ova' going into 'rented' is 'RENOVATED'.

Can you help me to learn more?

(Other definitions for renovated that I've seen before include "Done up" , "Healthy again" .)

I've seen this clue in The Independent.

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