Not pay for a meal at a restaurant … or a hint to each half of 16-, 19-, 34- and 50-Across

The answer to the crossword question is DINEANDDASH. This phrase refers to the act of leaving a restaurant without paying for the meal. It is also a hint to each half of four other answers in the crossword puzzle. The first half of 16-Across is DINE, the first half of 19-Across is AND, the first half of 34-Across is DASH, and the first half of 50-Across is DINE. By combining these halves with the word “and,” we get the phrase “Dine and Dash.” This answer is a playful nod to a not-so-funny real-life situation.