Crossword Genius

Nut's top religious books showing proof of Creator? (6)

Ross

I believe the answer is:

patent

I'm a little stuck... Click here to teach me more about this clue!

'proof of creator?' is the definition.
The definition and answer can be both related to communication as well as being singular nouns.
Maybe you can see a link between them that I don't see?

'nut's top religious books' is the wordplay.
I cannot quite see how this works, but
'top' could be 'pate' (pate is a kind of top) and 'pate' is found in the answer.
'books' could be 'nt' (New Testament) and 'nt' is found in the answer.
This accounts for all the letters.
This explanation may well be incorrect...

'showing' is the link.

Can you help me to learn more?

(Other definitions for patent that I've seen before include "Obvious, unconcealed" , "unmistakeable" , "Licence for invention; obvious" , "Manifest" , "Obvious - protection for inventors" .)

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