Surrounded by support, receiving money (4)
I believe the answer is:
amid
'surrounded by' is the definition.
(I've seen this before)
'support receiving money' is the wordplay.
'support' becomes 'aid' ('aid' can be a synonym of 'support'**).
'receiving' is an insertion indicator.
'money' becomes 'm' (abbreviation in economics).
'aid' enclosing 'm' is 'AMID'.
(Other definitions for amid that I've seen before include "Maid (anag)" , "Within" , "In the middle of" , "In the course of" , "'See . . . . the winter's snow' (carol)" .)