Animal of wax? (4)
I believe the answer is:
seal
This clue could be a double definition.
'animal' is the first definition.
(I have seen 'Marine animal' mean 'seal' so perhaps 'animal' could also mean 'seal')
'wax?' is the second definition.
The definition and answer can be both substances as well as being singular nouns.
Maybe you can see a link between them that I can't see?
'of' acts as a link.
Can you help me to learn more?
(Other definitions for seal that I've seen before include "Make waterproof - stamp" , "Signet" , "Insignia for sale" , "Secure against leakage" , "Marine animal or sign of authenticity" .)