Monk's vinegary vocals (7)
I believe the answer is:
ascetic
'monk's' is the definition.
(I've seen this in another clue)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for ascetic that I've seen before include "Eremite" , "Religiously self-disciplined" , "Hermit" , "One who practises extreme self-discipline" , "Person who lives severely simple life" .)