What’s the answer to this tricky crossword clue?

What’s the answer to this tricky crossword clue? - USE
"What's the ___?"

Once upon a time, there was a man named Jack who loved doing crossword puzzles. He would spend hours on end, trying to solve the most challenging clues. One day, he came across a clue that stumped him. The clue read, “What’s the ___?” He tried to fill in the blanks with various words but nothing seemed to fit.

Frustrated, Jack decided to take a break and went for a walk in the park. As he was walking, he noticed a little girl struggling to tie her shoelaces. He went over to her and asked if she needed help. The little girl looked up at him and said, “I don’t know how to use these.” She was referring to her new shoes, which had complicated laces.

It suddenly dawned on Jack that the answer to the crossword clue was ‘USE‘. The little girl had unintentionally helped him solve the clue. He quickly made his way back home and filled in the answer. Jack felt proud of himself for solving the puzzle and grateful to the little girl for helping him.

From that day on, whenever Jack came across a difficult crossword clue, he would ask himself, “What would that little girl say about this?” and it never failed to help him find the answers.

USE