Somehow meant to run event (10)
I believe the answer is:
tournament
'event' is the definition.
(tournament is a kind of event)
'somehow meant to run' is the wordplay.
'somehow' is an anagram indicator.
'meant'+'to'+'run'='meanttorun'
'meanttorun' anagrammed gives 'TOURNAMENT'.
(Other definitions for tournament that I've seen before include "Medieval jousting event" , "Jousting competition" , "Sports contest" , "meeting!" , "Series of events" .)