Caught participating in obviously contrived game (6)
I believe the answer is:
hockey
'game' is the definition.
(I know that hockey is a type of athletic game)
'caught participating in obviously contrived' is the wordplay.
'caught' becomes 'c' (cricket abbreviation).
'participating in' means one lot of letters goes inside another.
'obviously contrived' becomes 'hokey' (I've seen this in another clue).
'c' put within 'hokey' is 'HOCKEY'.
(Other definitions for hockey that I've seen before include "Game with a bully-off" , "Stick and ball game" , "Team game using curved sticks and ball" , "It's played with curved stick" , "Team game played with curved sticks and hard ball" .)