Form of rummy (7)
I believe the answer is:
canasta
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">form of rummy</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 canasta that I've seen before include "this needs two packs" , "Game played with two packs of cards and jokers" , "Two-pack card game" , "Card-game played with two packs of cards" , "Rummy-like card-game" .)