Teapot part (5)
I believe the answer is:
spout
'teapot part' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for spout that I've seen before include "Hold forth at length" , "Make speech; part of teapot" , "Pouts beneath jet of liquid" , "Gush" , "Discharge" .)