Range between soprano and tenor (4)
I believe the answer is:
alto
'range between soprano and tenor' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for alto that I've seen before include "Male singer" , "The highest adult male singing voice" , "Counter-tenor or contralto" , "Key old > male who scores high" , "High male singing voice" .)