Possible Clues:

• A vocation's tricky in Halifax area
• Cape Breton locale
• Atlantic region is not one area into which da Gama ventured
• Before last month, a man from Glasgow returned first class with American neighbour
• Where horses may run during All Saints' Day, a North American location
• Star tours racecourse, one somewhere in Canada
• Not a tie, having broken through for province
• All Saints Day around racecourse provides tip for accumulator in Canada
• Sydney's province
• A Maritime province