Show patience or snap (4,4)
I believe the answer is:
card game
'snap' is the definition.
The definition and answer can be both acts as well as being singular nouns.
Maybe you can see an association between them that I can't see?
'show patience' is the wordplay.
I cannot really see how this works, but
'show' could be 'game' (game show is a kind of show) and 'game' is found in the answer.
The remaining letters 'card' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
'or' acts as a link.
Can you help me to learn more?
(Other definitions for card game that I've seen before include "Patience for one" , "'Rummy or bridge, say (4,4)'" , "solo, perhaps" , "Poker or whist, say" , "old maid?" .)