"Candida” playwright (4)
I believe the answer is:
shaw
'candida playwright' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for shaw that I've seen before include "Man and Superman playwright" , "Irish playwright, d. 1950" , "making an appearance in Craiglockhart?" , "Playwright; small wood" , "George Bernard -, Irish dramatist" .)