Back-and-forth struggle

The answer to the crossword question is TUGOFWAR. This is a game or activity played between two teams who pull on opposite ends of a rope with the aim of dragging their opponents over a central line. The game is often used as a competition of strength between two teams, with each team trying to pull the rope in their direction. The game involves a back-and-forth struggle, as each team tries to gain the upper hand in the competition. Ultimately, the team with the most strength, determination, and strategy prevails, pulling their opponents over the central line to win the game.