Boathouse item (3)
I believe the answer is:
oar
'boathouse item' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for oar that I've seen before include "Implement to propel a boat" , "Rower's paddle" , "Pole for rowing" , "Sweep" , "Boat propellant" .)