Card game; odd (5)
I believe the answer is:
rummy
I believe this clue is a double definition.
'card game' is the first definition.
(I know that rummy is a type of card game)
'odd' is the second definition.
(I know that odd can be written as rummy)
(Other definitions for rummy that I've seen before include "Card game; strange; like a spirit" , "Two-pack card game" , "game of cards" , "Peculiar - card game" , "with an alcoholic taste?" .)