Party, wedding or town (7)

I believe the answer is:
planner
(Other definitions for planner that I've seen before include "Whole year calendar" , "Appointment diary" , "Council worker" , "One making advance arrangements" , "Whole-year calendar" .)
I believe the answer is:
planner
(Other definitions for planner that I've seen before include "Whole year calendar" , "Appointment diary" , "Council worker" , "One making advance arrangements" , "Whole-year calendar" .)