Answer: SIMP

"Simp" is a slang term that refers to a person, usually a man, who is overly attentive, submissive, or supportive towards someone they are romantically interested in, often to the point of being foolish or overly accommodating. It is often used to describe someone who goes out of their way to please or gain the attention of another person, often without reciprocation or a genuine connection.

Note: The provided meaning of the answer is for the latest New York Times crossword puzzle clue: Foolish sort. Explanations are generated by AI and may be inaccurate.