Shout of triumph (5)
I believe the answer is:
voila
'shout of triumph' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for voila that I've seen before include "See there, behold - in France" , "There you go!" , "Announcement from French producer" , "See there, howzat - in France" , "The French see" .)