Answer: crownjewels

AnswerCrossword Clue
CROWNJEWELSOliver Cromwell tried to melt them down
CROWNJEWELSPalace display
CROWNJEWELSTower of London treasure
CROWNJEWELSPart of Elizabeth II's fortune
CROWNJEWELSTower of London attraction
CROWNJEWELSPalace display, maybe
CROWNJEWELSTower of London treasures