Answer: pastmaster

AnswerCrossword Clue
PASTMASTERThoroughly experienced person
PASTMASTERWiz
PASTMASTERAcknowledged pro
PASTMASTERTruman's Masonic title.
PASTMASTERExpert.
PASTMASTERExpert
PASTMASTERAdept one
PASTMASTERAdept
PASTMASTERExpert in a field
PASTMASTERChess legend, e.g.
PASTMASTERFaculty member in the history department?