Events beyond human control (4,2,3)
I believe the answer is:
acts of god
'events beyond human control' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for acts of god that I've seen before include "disasters, naturally" , "floods, say" , "Events beyond human control" , "Uncontrollable events caused by deity?" , "Natural and unavoidable catastrophes" .)