Answer:

assistant

Answer	Crossword Clue
ASSISTANT	Second
ASSISTANT	Right hand
ASSISTANT	Aide

ASSISTANT	Helper
ASSISTANT	Helpmate.
ASSISTANT	Right-hand man.
ASSISTANT	Adjutant.
ASSISTANT	Staff member.
ASSISTANT	Malamud novel (with "The")
ASSISTANT	Watson, to Bell
ASSISTANT	Second beast of burden isn't carrying half of take (9)