Colony arrangement (10)
I believe the answer is:
settlement
I believe this is a double definition.
'colony' is the first definition.
('settlement' can be a synonym of 'colony')
'arrangement' is the second definition.
(thesaurus)
(Other definitions for settlement that I've seen before include "Colony - discharge of debt" , "Community - payment" , "Hamlet - conclusion" , "Dispute-resolving agreement" , "local community" .)