Draw a boat (3)
I believe the answer is:
tug
This clue is a double definition.
'draw' is the first definition.
(tugging is a kind of drawing)
'a boat' is the second definition.
(tug is a kind of boat)
(Other definitions for tug that I've seen before include "Pull forcibly" , "Pull hard; boat" , "Pull sharply" , "Pull vigorously, yank" , "Sudden abrupt pull" .)