Voice, possibly a bit stentorian? (5)
I believe the answer is:
tenor
'voice' is the definition.
(tenor voice is a kind of voice)
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for tenor that I've seen before include "Eg, Placido Domingo" , "Eg, Caruso" , "character" , "General meaning of a male voice" , "Placido Domingo, say" .)