I thought about that, jono. A long way West of Africa? Not sure I can make the parsing work - one of the two As surrounding the (abbreviated?) currency seems unaccounted for. But I may be missing something.
Or have I misconstrued you?
Well, it's a poor clue if there are any number of solutions in the absence of crossers.
LAGOS and ACCRA immediately spring to mind, though the former is only a regional capital.
Fairly straightforward but although I have an answer for 9ac I am unsure of the parsing.
The best I can come up with is an abbreviation backwards (west) of a Del Boy expression.
Not at all convinced.