Are you asking seriously?
Crosshare is a site where you can publish crosswords and others can do your crosswords. This crossword has been published at https://crosshare.org/crosswords/Eu9IUAhVJYaEU93W8c3g/whats-in-your-pocket-meta.
When a user uses that website link, and when a user successfully completes the grid, the website will present a form where you can enter what you think the meta is. The form will respond and tell you if your meta was correct or not.