Answer:

brakeman

Answer	Crossword Clue
BRAKEMAN	Conductor's assistant
BRAKEMAN	Worker of the R. R. Brotherhood.
BRAKEMAN	Conductor's assistant.

BRAKEMAN	R.R. worker
BRAKEMAN	Bobsled team member
BRAKEMAN	One in training?
BRAKEMAN	Important railroad employee
BRAKEMAN	Bobsled rider