Puzzle and Cipher

This is a simple puzzle as a Starter. You have the answers already, but in the form of anagrams. Complete the grid and find a password, which is the name of a famous battle. It is a trial puzzle, so I will be grateful for feedback in the Comments. The following picture is an outline of the puzzle grid. Click on the graphic and you will see a full-page A4 PDF puzzle which you can download and print. A more sophisticated version will allow you to answer online, but this is a prototype.