Noted Norwegian playwright (5)
I believe the answer is:
ibsen
'noted norwegian playwright' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for ibsen that I've seen before include "Norwegian dramatist, d. 1906" , "Norse playwright" , "Norwegian playwright (Peer Gynt)" , "Norwegian dramatist, Henrik (1828-1906)" , "Scandinavian playwright" .)