Break that's the same! (4)
I believe the answer is:
snap
I believe this is a double definition.
'break' is the first definition.
(snapping is a kind of breaking)
'that's the same' is the second definition.
(as in the card game)
(Other definitions for snap that I've seen before include "Become unhinged" , "Break; bite suddenly" , "Break sharply - a simple card game" , "Break like simple card game" , "Ginger biscuit" .)