Irish playwright (5)
I believe the answer is:
wilde
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">irish playwright</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for wilde that I've seen before include "Irish dramatist and wit" , "He wrote The Ballad of Reading Gaol" , "Oscar --, English writer" , "Author of The Picture of Dorian Gray" , "Oscar --, writer and wit" .)