Oklahoma city named for a Tennyson character (4)
I believe the answer is:
enid
'oklahoma city named for a tennyson character' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for enid that I've seen before include "Dine out on this girl's name also" , "Dine with this girl" , "Writer of children's books, d. 1968" , "W - - Blyton" , "Lady" .)