Hypocrisy from bank (4)
I believe the answer is:
cant
This clue is a double definition.
'hypocrisy' is the first definition.
(I've seen this in other clues)
'bank' is the second definition.
(synonyms)
'from' acts as a link.
(Other definitions for cant that I've seen before include "Stock phrases made nonsensical by endless repetition" , "'Language of a group, Travellers say (4)'" , "Lacks ability" , "Insincere talk; slope" , "Special jargon of a group" .)