"Seinfeld" role (6)
I believe the answer is:
elaine
'seinfeld role' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for elaine that I've seen before include "Name" , ""The lily maid of Astolat"" , "-- Paige, singer" , "Girl" , "-- Paige, singer/actress" .)