Yogi perhaps follows American behind capital city (8)
I believe the answer is:
canberra
'capital city' is the definition.
(I know that Canberra is a capital city)
'yogi perhaps follows american behind' is the wordplay.
I cannot quite see how this works, but
'yogi' could be 'berra' (I've seen this in another clue) and 'berra' is present in the answer.
'american' could be 'a' (common abbreviation - e.g. in organisation names) and 'a' is found within the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for canberra that I've seen before include "Strange crab near Australia" , "Capital - bomber - liner" , "Australian capital - famous liner" , "Capital of Australia" , "Ban carer in Australia" .)