The term 'Be Frank' can be solved by two crossword solutions: OPEN (4 letters) and LETONESHAIRDOWN (15 letters). The phrase 'Be Frank' is an idiom that means to be honest and direct in one's communication. The solution OPEN implies that one should be OPEN and transparent when communicating with others. The solution LETONESHAIRDOWN suggests that one should not hide anything and be willing to reveal all of their thoughts and feelings.