Time to go

The answer to the crossword clue “Time to go is TURN” is likely one of the many meanings of the word “turn” which is “a time when someone starts to behave or feel a different way.” In other words, when it’s time to go, it’s time to change direction or behavior, which can be described as a turn. This use of “turn” is commonly found in idiomatic expressions such as “turn over a new leaf” or “take a turn for the worse/better.” Therefore, the answer to this crossword clue is most likely “turn.”