Latin banker - or one against boosting central stock (7)
I believe the answer is:
orinoco
'latin banker' is the definition.
'orinoco' can be an answer for 'banker' (I've seen this before). I am unsure of the 'latin' bit.
'or one against boosting central stock' is the wordplay.
I cannot quite understand how this works, but
'or' is present in the answer.
'one' could be 'i' (Roman numeral) and 'i' is present in the answer.
'against' could be 'no' and 'no' is present in the answer.
'central' could be 'c' (common abbreviation in various government acronyms) and 'c' is found within the answer.
A single letter 'o' remains which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for orinoco that I've seen before include "South American river flowing into the Atlantic" , "Common character" , "banker" , "Colombia/Venezuela river" , "may be seen running through South America" .)