Twangy (5)
I believe the answer is:
nasal
'twangy' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for nasal that I've seen before include "Of noses" , "Relating to a facial organ" , "Sounding affected by cold" , "like the sound from an organ" , "front piece of helmet" .)