Prominent choppers for US capital force (9)
I believe the answer is:
buckteeth
'prominent choppers' is the definition.
(choppers can mean teeth)
'us capital force' is the wordplay.
'us capital' becomes 'buck' (informal term for dollar).
'force' becomes 'teeth' (eg something with force or effect 'has teeth').
'buck'+'teeth'='BUCKTEETH'
'for' acts as a link.
(Another definition for buckteeth that I've seen is " They stick out".)
I've seen this clue in The Times.
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