Assault school's leader and punishment is to be reported (3,3,9)
I believe the answer is:
hit the headlines
'to be reported' is the definition.
I don't know anything about this answer so I cannot tell whether it can be defined by this definition.
'assault school's leader and punishment' is the wordplay.
'assault' becomes 'hit'.
'school's leader' becomes 'the head'.
'and' is a charade indicator (letters next to each other).
'punishment' becomes 'lines' (writing the same thing over and over).
'hit'+'thehead'+'lines'='HIT THE HEADLINES'
'is' is the link.
Can you help me to learn more?
(Other definitions for hit the headlines that I've seen before include "The banners supporting strike" , "made the papers" , "got top press billing" , "Do something newsworthy" , "make the news" .)