What "/" can mean (5)

I believe the answer is:

spare

(Other definitions for spare that I've seen before include "Thin; elegantly simple" , "Extra item just in case" , "Superfluous" , "Refrain from using" , "show mercy" .)

I've seen this clue in The New York Times.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.