Thrust forward name for inclusion in Olympic event (5)
I believe the answer is:
lunge
'thrust forward' is the definition.
(I've seen this before)
'name for inclusion in olympic event' is the wordplay.
'name' becomes 'n' (common abbreviation e.g. on forms).
'for inclusion in' is an insertion indicator.
'olympic event' becomes 'luge' (luge is a toboggan event at the Olympics).
'n' inserted within 'luge' is 'LUNGE'.
(Other definitions for lunge that I've seen before include "Sudden thrust forward" , "foil attack?" , "Trust forward as with sword" , "fast movement" , "Impulsive move" .)