The term 'party nosh' refers to food that is served at a party or gathering. The crossword solution for this term is 'canape, ' which is a type of appetizer or hors d'oeuvre. Canapes are typically small, bite-sized pieces of food that are served on a cracker or piece of toast. They can be savory or sweet and often include a variety of ingredients such as cheese, meats, vegetables, and fruits.