Hearty opera singer? (5)
I believe the answer is:
tenor
This could be a double definition.
'hearty' is the first definition.
Both the definition and answer are adjectives. Maybe you can see a link between them that I can't see?
'opera singer?' is the second definition.
(I've seen this in another clue)
Can you help me to learn more?
(Other definitions for tenor that I've seen before include "Male voice of high pitch, like Luciano" , "direction" , "Caruso or Domingo" , "Male voice (one of three?)" , "Higher male voice" .)