Raised money for speakers (4)
I believe the answer is:
bred
'raised' is the definition.
(I've seen this before)
'money for speakers' is the wordplay.
'money' becomes 'bread' (bread is slang for money).
'for speakers' indicates a 'sounds like' (homophone) clue (I've seen 'for speaker' mean this).
'bread' sounds like 'BRED'.
(Other definitions for bred that I've seen before include "Very (music)" , "Gave rise to" , "Nurtured" , "Generated" , "Developed (animal variety)" .)