Rhode Island chief made of money (4)
I believe the answer is:
rich
'made of money' is the definition.
'rhode island chief' is the wordplay.
'rhode island' becomes 'ri' (US postal abbreviation).
'chief' becomes 'ch' (I've seen this in other clues).
'ri'+'ch'='RICH'
(Other definitions for rich that I've seen before include "Opulent" , "Affluent" , "Containing a lot of fat, eggs and sugar" , "Well-heeled" , "Of great worth or quality" .)