Somewhere in France that's cleaner — and very French! (8)
I believe the answer is:
chartres
'somewhere in france' is the definition.
(French city)
'cleaner and very french' is the wordplay.
'cleaner' becomes 'char' (charwoman is a type of cleaner).
'and' is a charade indicator (letters next to each other).
'very french' becomes 'tres' ('very' translated into French).
'char'+'tres'='CHARTRES'
'that's' is the link.
(Other definitions for chartres that I've seen before include "French city - her carts (anag)" , "Gothic cathedral on R. Eure" , "French town with famous cathedral" , "Cathedral city in north-west France" , "City southwest of Paris - arch rest (anag)" .)