Business outfit (4)
I believe the answer is:
suit
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">business outfit</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for suit that I've seen before include "It constitutes one quarter of a deck" , "C, D, H or S" , "Befit" , "Part of pack (of cards)" , "clubs maybe?" .)