Answer:

pusher

Answer	Crossword Clue
PUSHER	Narc's quarry
PUSHER	Sting target
PUSHER	Guy behind a wheelbarrow

PUSHER	Drug dealer
PUSHER	Narcotics-ring man
PUSHER	Narc's target
PUSHER	Person behind a pram
PUSHER	Airplane with the propeller at the back
PUSHER	Japanese subway employee
PUSHER	Junk dealer?