Hockey coup (3,5)
I believe the answer is:
hat trick
'hockey coup' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for hat trick that I've seen before include "Taking three wickets with consecutive balls" , "Sporting set of three" , "Run of three successes" , "Three consecutive wins" , "Three scored in a row as in soccer match" .)