Accountant from college taken in by presentation that's a money-spinner for those dealing in stock presumably (7)

'by presentation that's a money-spinner for those dealing in stock presumably' is the definition.
I don't know anything about this answer so I cannot judge whether this works.

'accountant from college taken' is the wordplay.
'accountant' becomes 'CA' (abbreviation for chartered accountant).
'from' becomes 'show' (I am not sure about this - if you are sure you should believe this answer much more).
'college' becomes 'c'.
'taken' indicates putting letters inside.
'show' enclosing 'c' is 'shcow'.
'ca'+'shcow'='CASHCOW'

'in' acts as a link.

Can you help me to learn more?