Great winger in championship game (9)
I believe the answer is:
superbowl
'championship game' is the definition.
I know nothing about this answer so I cannot tell whether it can be defined by this definition.
'great winger' is the wordplay.
'great' becomes 'superb' (I've seen this in another clue).
'winger' becomes 'owl' (type of bird).
'superb'+'owl'='SUPERBOWL'
'in' is the link.
Can you help me to learn more?
(Other definitions for superbowl that I've seen before include "American competition?" , "big game in America" , "sporting event" .)