The French bank with good interior generally (7)
I believe the answer is:
largely
'generally' is the definition.
(I've seen this before)
'the french bank with good interior' is the wordplay.
'the french' becomes 'la' (one of the French words for 'the').
'bank with' becomes 'rely' (to bank on something is to rely on it. I am not sure about the 'with' bit.).
'good' becomes 'g' (abbreviation).
'interior' indicates putting letters inside.
'rely' placed around 'g' is 'rgely'.
'la'+'rgely'='LARGELY'
Can you help me to learn more?
(Other definitions for largely that I've seen before include "On the whole" , "as a rule" , "Allergy (anag.)" , "Mostly found in gallery" , "Generally" .)