"Man And Superman" playwright (4)
I believe the answer is:
'man and superman playwright' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for shaw that I've seen before include "G. B. ---; T. E. ---" , "George Bernard -, Irish dramatist" , "Major Barbara playwright" , "writer of plays and critical commentaries" , "making an appearance in Craiglockhart?" .)