The term 'Be an Angel' is a phrase that is used to describe someone who is generous and kind. The two crossword solutions for this phrase are 'BACK' (4 letters) and 'BANKROLL' (8 letters). 'BACK' can refer to the support or encouragement someone gives to another person, while 'BANKROLL' can refer to the financial resources someone has available to help others. Therefore, these two words together suggest that someone is being generous and kind by providing both emotional and financial support.