Question after a mission (7)
I believe the answer is:
debrief
'question after a mission' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for debrief that I've seen before include "get the full story" , "Be fired (anag.)" , "Interview after mission (to gather information)" , "Question (soldier) after a mission" , "Gather information from (a soldier) after operation" .)