Pass money to the senior member (5)
I believe the answer is:
doyen
'the senior member' is the definition.
(a senior or respected figure)
'pass money' is the wordplay.
'pass' becomes 'do' (doing is a kind of passing).
'money' becomes 'yen' (Japanese currency).
'do'+'yen'='DOYEN'
'to' is the link.
(Other definitions for doyen that I've seen before include "Most prominent expert" , "Respected expert" , "Senior male figure in a profession" , "Group's senior member" , "respected figure" .)