Bigheaded fellow with hereditary title (4)
I believe the answer is:
bart
This clue could be a double definition.
'bigheaded fellow' is the first definition.
The answer and definition can be both people as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
'hereditary title' is the second definition.
Although both the answer and definition are singular nouns, I don't see how one could define the other.
'with' acts as a link.
Can you help me to learn more?
(Other definitions for bart that I've seen before include "Branch of Islam" , "Son in The Simpsons" , "Small title-holder being a brat" , "Homer's son" .)