Crossword Genius

Agree to exchange letters (10)

Ross

I believe the answer is:

correspond

I believe this clue is a double definition.

'agree' is the first definition.
(I've seen this before)

'exchange letters' is the second definition.
(thesaurus)

'to' acts as a link.

(Other definitions for correspond that I've seen before include "Communicate; agree" , "answer" , "Keep in touch by letter" , "Swap letters" , "email, say?" .)

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