Drunk angered, raise your weapon (2,5)
I believe the answer is:
'raise your weapon' is the definition.
(warning to a fencer to prepare for attack)
'drunk angered' is the wordplay.
'drunk' is an anagram indicator.
'angered' is an anagram of 'EN GARDE'.
(Other definitions for en garde that I've seen before include "Words of warning", "Fencer's warning cry", "(In fencing) in a defensive stance", "warning of attack", "The opening position in fencing - mind yourself".)