Arrogant, intoxicated worker appears before news boss (4-6)
I believe the answer is:
high-handed
'arrogant' is the definition.
(I've seen this before)
'intoxicated worker appears before news boss' is the wordplay.
'intoxicated' becomes 'high' (similar in meaning).
'worker' becomes 'hand' (hand is a kind of worker).
'appears' says to put letters next to each other (some letters appear after others).
'before' is a charade indicator (letters next to each other).
'news boss' becomes 'ed' (short for editor).
'high'+'hand'+'ed'='HIGH-HANDED'
(Other definitions for high-handed that I've seen before include "Overbearing" , "Domineering, inconsiderate" .)