Patrick isn't part of practical joke or sweet talk (6)

I believe the answer is:

cajole

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'sweet talk' is the definition.
(thesaurus)

I don't understand how the remainder of the clue works.

(Other definitions for cajole that I've seen before include "Coaxingly persuade" , "Try to influence" , "Gently influence" , "Wheedle - coax" , "'Coax, sweet-talk (6)'" .)

I've seen this clue in the Irish Times and the Irish Times (Crosaire).

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