Upset, disturbed (8)
I believe the answer is:
agitated
I believe this clue is a double definition.
'upset' is the first definition.
(thesaurus)
'disturbed' is the second definition.
(agitating is a kind of disturbing)
(Other definitions for agitated that I've seen before include "'Troubled, disturbed (8)'" , "Stirred up, excited" , "Unsettled" , "Excited or troubled" , "Worked up, flustered" .)