"The Sandbox" playwright (5)
I believe the answer is:
albee
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">the sandbox playwright</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for albee that I've seen before include "even if now forgotten?" , "American dramatist" , "Edward --, US playwright" .)