One protesting when residents moved (9)
I believe the answer is:
dissenter
'one protesting' is the definition.
(someone dissenting from the majority view)
'residents moved' is the wordplay.
'moved' indicates anagramming the letters.
'residents' with letters rearranged gives 'DISSENTER'.
'when' acts as a link.
(Other definitions for dissenter that I've seen before include "One who differs among residents" , "one not C of E" , "One not agreeing" , "As protester" , "Nonconformist" .)