Player in old plays missing climax from tricksy Italian playwright (10)
I believe the answer is:
pirandello
'playwright' is the definition.
(I know that Pirandello is a playwright)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for pirandello that I've seen before include "Be in complete control" , "Italian short story writer" , "Sicilian dramatist" , "writer found" , "Luigi -, Italian playwright (Six Characters in Search of an Author)" .)