Draw boat (3)
I believe the answer is:
tug
I believe this clue is a double definition.
'draw' is the first definition.
(tugging is a kind of drawing)
'boat' is the second definition.
(I know that tug is a type of boat)
(Other definitions for tug that I've seen before include "Pull at, or a boat that pulls" , "Pull vigorously at or tow" , "Boat to pull larger ones" , "Working boat" , "jerk" .)