Doctor of Literature endlessly circled by European ballerina (8)
I believe the answer is:
danseuse
'ballerina' is the definition.
(I know that ballerina can be written as danseuse)
'doctor of literature endlessly circled by european' is the wordplay.
'doctor of literature' becomes 'seuss' (I've seen this in another clue).
'endlessly' means to remove the last letter.
'circled by' indicates putting letters inside (I've seen this in other clues).
'european' becomes 'Dane' (someone from Denmark).
'seuss' with its final letter taken off is 'seus'.
'seus' going into 'dane' is 'DANSEUSE'.
(Other definitions for danseuse that I've seen before include "artiste" , "Ballet girl" , "ballet company member" , "Ballerina" , "entertainer" .)