Ship's smokestack (6)

I believe the answer is:
funnel
'ship's smokestack' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for funnel that I've seen before include "Cone-shaped utensil and ship's smokestack" , "Smokestack on ship" , "Kind of conduit for pouring liquid into small opening" , "Chimney; pourer" , "Steam engine chimney" .)