New income set to provide a small amount of money (9)
I believe the answer is:
centesimo
'a small amount of money' is the definition.
(a hundredth of a lira, former Italian currency)
'new income set' is the wordplay.
'new' indicates anagramming the letters.
'income'+'set'='incomeset'
'incomeset' with letters rearranged gives 'CENTESIMO'.
'to provide' acts as a link.
(Other definitions for centesimo that I've seen before include "old money" , "small amount in some countries" , "Monetary unit of Uruguay and Panama" , "Panamanian money" , "very little money" .)