The term 'It's Heaven-Sent' can be broken down into two crossword solutions: 'MANNA' and '5 letters'. MANNA is a term from the Bible which refers to food that was sent from Heaven to feed the Israelites during their journey in the wilderness. In the Bible, MANNA is described as a white substance that tasted like wafers made with honey. The term '5 letters' refers to the length of the word 'MANNA', which is five letters long.