Reporter's triumph (5)
I believe the answer is:
scoop
'reporter's triumph' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for scoop that I've seen before include "Book by Evelyn Waugh (exclusive)" , "Dredge up" , "Exclusive report" , "Hollow concave utensil" , "Exclusive news story" .)