Scissor typically refers to a cutting tool consisting of two metal blades joined at a pivot point. They are commonly used for cutting paper, fabric, and other materials. However, I'm not sure how the clue "Kick starter" relates to the word scissor.
Note: The provided meaning of the answer is for the latest New York Times crossword puzzle clue: Kick starter?. Explanations are generated by AI and may be inaccurate.