Revolutionary not behind money-laundering perhaps of the American capital (10)
I believe the answer is:
washington
'the american capital' is the definition.
('Washington' can be a synonym of 'american capital')
'revolutionary not behind money-laundering perhaps' is the wordplay.
'revolutionary' shows that the letters should be reversed in order.
'behind' means one lot of letters go next to another.
'money laundering perhaps' becomes 'washing' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'not' in reverse letter order is 'ton'.
'ton' after 'washing' is 'WASHINGTON'.
'of' is the link.
Can you help me to learn more?
(Other definitions for washington that I've seen before include "NW US state" , "First US president" , "State - capital - president" , "United States capital" , "US capital" .)