The crossword solution for the term 'HARD ON THE NOSE' is ACRID, which is a five-letter word. ACRID is an adjective that means having a strong, unpleasant smell or taste, especially one that causes irritation. It is often used to describe something that is sharp and pungent. In this context, it could be used to describe a situation that is difficult to deal with or a person who is difficult to get along with.