The term 'SEALS IN A SEPULCHER' can be solved by the crossword solution 'ENTOMBS', which is a 7-letter word. Entombment is the act of placing a body in a tomb or sepulcher, which is a chamber or monument for burying the dead. Seals are often used to close tombs and sepulchers, so the phrase 'SEALS IN A SEPULCHER' could refer to the practice of sealing a tomb or sepulcher after a body has been entombed.