Expert in money matters; i.e. in franc conversion (9)
I believe the answer is:
financier
'expert in money matters' is the definition.
The answer and definition can be both people as well as being singular nouns.
Maybe there's a link between them I don't understand?
'i e in franc conversion' is the wordplay.
'conversion' indicates anagramming the letters.
'i'+'e'+'in'+'franc'='ieinfranc'
'ieinfranc' with letters rearranged gives 'FINANCIER'.
Can you help me to learn more?
(Other definitions for financier that I've seen before include "Businessman" , "Money transactor" , "Gnome" , "Money manager" , "Manager of large-scale monetary resources" .)