Answer: contralto

AnswerCrossword Clue
CONTRALTOLow-voiced female
CONTRALTOMarian Anderson, for one
CONTRALTOLowest female voice
CONTRALTOMarian Anderson, e.g.
contraltoA singer with such a voice
contraltoThe lowest female singing voice
contraltoA part written for such a voice
contralto(Italian) the part sung by the highest male or lowest female voices