Bismarck, maybe, not the leader of another country (7)
I believe the answer is:
russian
'bismarck' is the definition.
The definition and answer can be both people as well as being singular nouns.
Perhaps there's an association between them I don't understand?
'maybe not the leader of another country' is the wordplay.
I cannot quite understand how this works, but
'maybe' could be 'i' (I've seen this in other clues) and 'i' is present in the answer.
'another' could be 'r' (I've seen this in other clues) and 'r' is located in the answer.
'country' could be 'us' (U.S. is an example) and 'us' is found in the answer.
The remaining letters 'san' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for russian that I've seen before include "Native of the world's largest country" , "St Petersburg native" , "Muscovite possibly" , "One from Petersburg" , "East European" .)