A lump in one's throat (5)
I believe the answer is:
uvula
'a lump in one's throat' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for uvula that I've seen before include "Fleshy body at back of throat" , "Fleshy part above the throat" , "Fleshy flap" , "Part of one's mouth" , "Flap hanging in back of throat" .)