Event for those who know the ropes (5)
I believe the answer is:
rodeo
'event for those who know the ropes' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for rodeo that I've seen before include "Cowboy riding contest" , "skilful exhibition?" , "sort of exhibition" , "At which cowboys show their skills" , "Originally, a round up of cattle" .)