Bank charge overturned following resistance (4)
I believe the answer is:
reef
'bank' is the definition.
(thesaurus)
'charge overturned following resistance' is the wordplay.
'charge' becomes 'fee' (fee is a kind of charge**).
'overturned' says the letters should be written backwards.
'following' says to put letters next to each other.
'resistance' becomes 'r' (abbreviation).
'fee' back-to-front is 'eef'.
'eef' put after 'r' is 'REEF'.
(Other definitions for reef that I've seen before include "Submerged ridge of rock or coral near the surface" , "Type of knot" , "Coral formation - kind of knot" , "The sort of knot" , "Gather up" .)