The word "OLEG" is a man's name. If you move the first letter "O" to the end of the word, it becomes "LEGO," which is a popular toy brand known for its building blocks.
Note: The provided meaning of the answer is for the latest New York Times crossword puzzle clue: Man's name that becomes a popular toy brand if you move the first letter to the end. Explanations are generated by AI and may be inaccurate.