Pontoon bridge components (4,5)
I believe the answer is:
card games
'components' is the definition.
Although both the answer and definition are plural nouns, I can't understand how they can define each other.
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for card games that I've seen before include "Poker, whist, bridge, patience and the rest" , "Diversions" .)