Part of a goblet (4)
I believe the answer is:
stem
'part of a goblet' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for stem that I've seen before include "part of pipe" , "Restrict - part of a plant" , "Originate (from)" , "Thwart; support" , "Vertical part of flower or drinking glass" .)