Brave military man shot arrow over ambassador (3,4)
I believe the answer is:
war hero
'brave military man' is the definition.
I know nothing about this answer so I can't judge whether this works.
'shot arrow over ambassador' is the wordplay.
'shot' is an anagram indicator.
'over' is an insertion indicator.
'ambassador' becomes 'HE' (His or Her Excellency).
'arrow' is an anagram of 'warro'.
'warro' enclosing 'he' is 'WAR HERO'.
Can you help me to learn more?
(Other definitions for war hero that I've seen before include "Nelson, no doubt" , "valiant soldier" .)