Shared ownership of banks and society that's trendy (4)
I believe the answer is:
ship
'shared ownership of banks and' is the definition.
I can't tell whether this definition defines the answer.
'society that's trendy' is the wordplay.
'society' becomes 's' (common abbreviation in names of organisations).
'that's trendy' becomes 'hip' (both can mean fashionable).
's'+'hip'='SHIP'
Can you help me to learn more?
(Other definitions for ship that I've seen before include "Vessel that carries passengers or freight" , "See 18" , "Transport as on sea-going vessel" , "Large boat, dispatch" , "Seagoing boat" .)