Key choice about Winter Olympics discipline (3,6)
I believe the answer is:
ice hockey
'winter olympics discipline' is the definition.
The answer and definition can be both acts as well as being singular nouns.
Maybe they are linked in a way I don't understand?
'key choice about' is the wordplay.
'about' indicates an anagram.
'key'+'choice'='keychoice'
'keychoice' is an anagram of 'ICE-HOCKEY'.
Can you help me to learn more?
(Other definitions for ice hockey that I've seen before include "Game played by skaters with a puck" , "Sport with puck" , "Violent sport, big in North America" , "Team game played with long sticks" .)