Arranged truce after the French talk (7)
I believe the answer is:
lecture
'talk' is the definition.
('lecture' can be a synonym of 'talk')
'arranged truce after the french' is the wordplay.
'arranged' is an anagram indicator.
'after' says to put letters next to each other.
'the french' becomes 'le' (**).
'truce' is an anagram of 'cture'.
'cture' after 'le' is 'LECTURE'.
(Other definitions for lecture that I've seen before include "University teaching period" , "Deliver a talk" , "University lesson" , "Teaching discourse" , "Lengthy reprimand" .)