Gym sample I adulterated with 50% of coke, in major sporting event (7,5)
I believe the answer is:
olympic games
'major sporting event' is the definition.
'olympic games' can be an answer for 'event' (Olympic Games is an example). I am unsure of the 'major sporting' bit.
'gym sample i adulterated with 50% of coke' is the wordplay.
'adulterated with' indicates anagramming the letters (I've seen this in other clues).
'50% of' suggests halving the letters.
'coke' halved is 'co'.
'gym'+'sample'+'i'='gymsamplei'
'gymsamplei' mixed up with 'co' makes 'OLYMPIC GAMES'.
'in' acts as a link.
Can you help me to learn more?
(Other definitions for olympic games that I've seen before include "International athletic event" , "Event whose sign here" , "sporting festival" , "Two thousand and twelve London event" , "Four-yearly event" .)