Forbearance is a game (8)
I believe the answer is:
patience
I believe this clue is a double definition.
'forbearance' is the first definition.
(I know that forbearance can be written as patience)
'game' is the second definition.
(I know that patience is a type of card game)
'is a' is the link.
(Other definitions for patience that I've seen before include "'Forbearance, tolerance (8)'" , "bird, some might say" , "capacity for endurance" , "Virtue - solitaire" , "Card game played by one person" .)