Missionary getting a position with the French (7)
I believe the answer is:
apostle
'missionary' is the definition.
(I've seen this before)
'a position with the french' is the wordplay.
'position' becomes 'post' (synonyms).
'with' says to put letters next to each other.
'the french' becomes 'le' ('the' in French).
'a'+'post'+'le'='APOSTLE'
'getting' acts as a link.
(Other definitions for apostle that I've seen before include "James, perhaps" , "Augustine, say" , "Preacher of the gospel" , "Ale pots (anag)" , "Vigorous supporter" .)