Just before time of incident (5)
I believe the answer is:
event
'incident' is the definition.
(thesaurus)
'just before time' is the wordplay.
'just' becomes 'even'.
'before' says to put letters next to each other.
'time' becomes 't'.
'even'+'t'='EVENT'
'of' is the link.
(Other definitions for event that I've seen before include "High jump, say" , "Sporting contest" , "Anything which happens" , "important" , "game, perhaps" .)