Attacked camp (8)
I believe the answer is:
affected
I believe this clue is a double definition.
'attacked' is the first definition.
(similar in meaning)
'camp' is the second definition.
(thesaurus)
(Other definitions for affected that I've seen before include "in a pretentious way" , "attacked" , "Artificial in manner, phoney" , "Stirred" , "La-di-da" .)