The entertainment business (7)
(Other definitions for showbiz that I've seen before include ""Bright lights" entertainment?" , "Entertaining" , "Stage and film entertainment" , "Theatre, films, TV etc" , "World of bright lights, the theatre etc" .)
(Other definitions for show biz that I've seen before include "Film, TV etc (colloquial)" , "Theatre, TV, movies etc" , "'Bright lights' entertainment?" , "Stage and film entertainment" , "World of bright lights, the theatre etc" .)