Answer: spermaceti

AnswerCrossword Clue
spermacetia waxlike substance used in candles, ointments, etc., obtained from oil of sperm-whale, etc also PARMACITIE
spermacetiA white waxy substance produced by the sperm whale, formerly used in candles and ointments. It is present in a rounded organ in the head, where it focuses acoustic signals and aids in the control of buoyancy