Pungent

ACRID

Sharp and biting, like smoke or spoiled milk, this word describes an unpleasant odor or taste.

The clue "Pungent" hints at a sharp, bitter smell or taste, which directly describes the word "acrid." There’s no wordplay here—it’s a straightforward definition where the answer matches the meaning of the clue. If you think of something harsh or stinging to the senses, "acrid" fits perfectly.