Playwright wails about decor (5,5)
I believe the answer is:
oscar wilde
'playwright' is the definition.
(I've seen this before)
'wails about decor' is the wordplay.
'about' indicates an anagram.
'wails' anagrammed with 'decor' gives 'OSCAR WILDE'.
(Other definitions for oscar wilde that I've seen before include "Irish-born writer and wit (1854-1900)" , "Irish writer and wit" , "playwright" , "He had nothing to declare but his genius" , "dramatist" .)