Managed to find time for rage (4)
I believe the answer is:
rant
'for rage' is the definition.
(thesaurus)
'managed to find time' is the wordplay.
'managed' becomes 'ran' (I've seen this in another clue).
'to find' is a charade indicator (letters next to each other).
'time' becomes 't' (abbreviation).
'ran'+'t'='RANT'
(Other definitions for rant that I've seen before include "Speak wildly and incoherently" , "bombast" , "Angry outburst" , "Loud and emotional declamation" , "Harangue, rave" .)