Crossword Genius

Agree to write (10)

Ross

I believe the answer is:

correspond

I believe this is a double definition.

'agree' is the first definition.
(I know that agree is a kind of agree)

'write' is the second definition.
(to correspond is to exchange letters with someone)

'to' acts as a link.

(Other definitions for correspond that I've seen before include "answer" , "email, say?" , "Have similar functions" , "Have a close similarity" , "Write - match" .)

I've seen this clue in The Guardian and The Telegraph.
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