If your WordPress theme doesn’t have a custom CSS editor panel in its options, you can install custom CSS plugin and install it. I can recommend the Reaktiv CSS Builder plugin
Once you have a way to add CSS, you can add this to hide the publish date and author info there:
The support post ‘Remove date & author from blog page’ is closed to new replies.
Have a question about this support post? Create a new support post in our support forums and include a link to this existing support post so we can help you.
Support forum for Event Espresso 3 and Event Espresso 4.