Whist variety (4)
I believe the answer is:
solo
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">whist variety</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 solo that I've seen before include "Alone - card game" , "One-person performance" , "Piece for single performer" , "Card game; for one" , "Done by one person" .)