Next and final question by listener is in French (7)
I believe the answer is:
nearest
'next' is the definition.
(I've seen this in another clue)
'final question by listener is in french' is the wordplay.
'final' suggests the final letters.
'by' means one lot of letters go next to another.
'listener' becomes 'ear' (body part which hears or listens).
'is in french' becomes 'est' ('is' in French).
The last letter of 'question' is 'n'.
'n'+'ear'+'est'='NEAREST'
'and' is the link.
(Other definitions for nearest that I've seen before include "Closest to hand" , "Close family members" , "Sneer at (anag)" , "touching?" , "Relations" .)