Keep camera rolling for arbitrator (10)
I believe the answer is:
peacemaker
'arbitrator' is the definition.
(thesaurus)
'keep camera rolling' is the wordplay.
'rolling' indicates anagramming the letters.
'keep'+'camera'='keepcamera'
'keepcamera' with letters rearranged gives 'PEACEMAKER'.
'for' acts as a link.
(Other definitions for peacemaker that I've seen before include "mediator" , "Person who reconciles enemies" , "Reconciler of enemies" , "'Revolver'" , "Eirenic type" .)