Crossword Genius

Talk of having part refurbished and let out (7)

Ross

I believe the answer is:

prattle

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

'talk' is the definition.
(I know that prattle is a type of cackle)

'having part refurbished and let out' is the wordplay.
I cannot quite see how this works, but
an anagram of 'part' is 'prat' which is within the answer.
an anagram of 'let' is 'tle' which is within the answer.
No letters remain.
This explanation may well be incorrect...

'of' is the link.

Can you help me to learn more?

(Other definitions for prattle that I've seen before include "Talk inconsequentially" , "Chat inconsequentially" , "Be vapidly garrulous" , "Foolish talk" , "Inconsequential chatter" .)

I've seen this clue in the Evening Standard.
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