Government-appointed businessman sadly wrong about America, investing in US money (5,5)
I believe the answer is:
crown agent
'government-appointed businessman sadly' is the definition.
I can't tell whether this definition defines the answer.
'wrong about america investing in us money' is the wordplay.
'about' indicates anagramming the letters.
'america' becomes 'a' (common abbreviation eg in USA).
'investing in' indicates putting letters inside.
'us money' becomes 'cent' (US coin).
'wrong' anagrammed with 'a' makes 'rownag'.
'rownag' inserted within 'cent' is 'CROWN AGENT'.
Can you help me to learn more?
(Other definitions for crown agent that I've seen before include "Legal adviser to the lord advocate in Scotland" , "who works in Overseas Development" , "Scottish lawyer" .)