Answer: actonesage

AnswerCrossword Clue
ACTONESAGEBehave appropriately
ACTONESAGEBe mature
ACTONESAGENot play around, perhaps
ACTONESAGEGrow up, so to speak
ACTONESAGENot be childish
ACTONESAGENot be juvenile
ACTONESAGEBehave