Playwright Ben is drunk (5)
I believe the answer is:
ibsen
'playwright' is the definition.
(Ibsen is an example)
'ben is drunk' is the wordplay.
'drunk' indicates an anagram.
'ben'+'is'='benis'
'benis' anagrammed gives 'IBSEN'.
(Other definitions for ibsen that I've seen before include "foreign author" , "6 24 113 [SCAN-DIN-AVIAN] writer" , "Linesman" , "Hedda Gabler author" , "Norwegian dramatist of 'Hedda Gabler'" .)