Nebraskan city president (7)
I believe the answer is:
lincoln
This could be a double definition.
'nebraskan city' is the first definition.
'Lincoln' can be an answer for 'city' (Lincoln is an English city). I am unsure of the 'nebraskan' bit.
'president' is the second definition.
(Abraham (Abe) Lincoln)
Can you help me to learn more?
(Other definitions for lincoln that I've seen before include "US president; UK city" , "English cathedral city - US president" , "American car" , "Eastern county town" , "Former US president" .)