It's hard to walk intoxicated with rage (4,4)
I believe the answer is:
high wire
'it's hard to walk' is the definition.
'intoxicated with rage' is the wordplay.
'intoxicated' becomes 'high' ('high' can be similar in meaning to 'intoxicated').
'with' becomes 'w' (abbreviation).
'rage' becomes 'ire' (I've seen this before).
'high'+'w'+'ire'='HIGH WIRE'
(Other definitions for high wire that I've seen before include "Tightrope for acrobats" , "Elevated tightrope" .)