Editor unfortunately caused a disturbance (6)
I believe the answer is:
rioted
'caused a disturbance' is the definition.
Although both the answer and definition are past participle verbs, I cannot see how one could define the other.
'editor unfortunately' is the wordplay.
'unfortunately' is an anagram indicator (a bad or unfortunate spelling).
'editor' anagrammed gives 'RIOTED'.
Can you help me to learn more?
(Other definitions for rioted that I've seen before include "Brawled" , "went on rampage" , "Revolted" , "was disorderly" , "Rampaged" .)