Sodium, sulphur and aluminium in one's nose (5)
I believe the answer is:
nasal
'one's nose' is the definition.
The definition and answer can be both body parts as well as being singular nouns.
Maybe you can see a link between them that I can't see?
'sodium sulphur and aluminium' is the wordplay.
'sodium' becomes 'NA' (Na is the chemical symbol for sodium).
'sulphur' becomes 'S' (synonyms).
'and' is a charade indicator (letters next to each other).
'aluminium' becomes 'al' (chemical symbol).
'na'+'s'+'al'='NASAL'
'in' acts as a link.
Can you help me to learn more?
(Other definitions for nasal that I've seen before include "nozzle" , "like the sound from an organ" , "front piece of helmet" , "regarding the nose" , "old face-saver" .)