Rummy relative (7)
I believe the answer is:
canasta
'rummy relative' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for canasta that I've seen before include "Decorated with artificial jewels" , "Rummy-like card-game" , "Card game at a scan" , "Card-game, a form of rummy" , "Card game of the rummy family" .)