Ability to endure card game (8)
I believe the answer is:
patience
'card game' is the definition.
(I know that patience is a type of card game)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for patience that I've seen before include "Solo card game, played with equanimity" , "Gilbert and Sullivan work" , "G & S' alternative for "Bunthorne''s Bride"" , "Work by G&S" , "Gilbertian dairymaid" .)