Alice refers to the fictional character Alice, commonly known from Lewis Carroll's novel "Alice's Adventures in Wonderland." In the given clue, "Curiouser and curiouser!" is a phrase frequently stated by Alice throughout the story to express her growing fascination with the strange happenings in Wonderland.
Note: The provided meaning of the answer is for the latest New York Times crossword puzzle clue: Wonderland visitor. Explanations are generated by AI and may be inaccurate.