Crossword Genius

Singer into vocal tone (4)

Ross

I believe the answer is:

alto

'singer' is the definition.
(alto is a kind of singer)

'into vocal tone' is the wordplay.
'into' indicates a hidden word.
'ALTO' is hidden within 'vocal tone'.

(Other definitions for alto that I've seen before include "The highest adult male singing-voice" , "Member of choir" , "Highest male voice: lowest female voice" , "Male singer" , "The highest adult male singing voice" .)

I've seen this clue in The Sun.
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