Run out of clothes?

STREAK

Think of a daring dash often done in the buff, especially on college campuses or as a prank.

This clue plays on two meanings of "streak." Literally, it can mean running naked in public, which ties to "run out of clothes." The word also fits because "run out" hints at speed (like a streak of light), while "clothes" is a misdirection—you’re not actually losing garments, just going without them. It’s a classic example of a punny crossword clue where the answer sounds like a different interpretation of the words.