Playwright featuring in one's biography, retrospectively (5)
I believe the answer is:
ibsen
'playwright' is the definition.
(Ibsen is an example)
'in one's biography retrospectively' is the wordplay.
'in' says the answer is hidden in the clue.
'retrospectively' says the letters should be written backwards.
'nesbi' is hidden within 'ones biography'.
'nesbi' in reverse letter order is 'IBSEN'.
'featuring' acts as a link.
(Other definitions for ibsen that I've seen before include "famous Norwegian" , "Norwegian playwright (Peer Gynt)" , "Henrik -, dramatist from fourteen down (Hedda Gabler)" , "Norse playwright" , "foreign author" .)