Answer:

hosers

Answer	Crossword Clue
HOSERS	Firefighters, at times
HOSERS	Con artists
HOSERS	Screw-ups, to the McKenzie brothers

HOSERS	Boors, in Banff
HOSERS	Swindlers
HOSERS	Gardeners, at times
HOSERS	Uncouth people, in Canadian slang
HOSERS	Firemen, at times
HOSERS	Con men
HOSERS	Con men, in slang
HOSERS	Deceitful people, in slang

HOSERS	Swindlers, slangily
HOSERS	Con artists, slangily
HOSERS	Boorish sorts, in Canada
HOSERS	Canadian clods
HOSERS	Boors, in Canada
HOSERS	Screw-ups, to the Mckenzie brothers
HOSERS	Scam artists, in slang