Thank you so much for using our theme AcmeBlog.
There is no any options available on AcmeBlog for show/hide the title, author etc on the featured section slider. If you are familiar with WordPress code, you can customize the theme with Child theme approach. If you are not familiar with code, you can use the premium version of this theme AcmeBlogPro. In this theme you can hide/show author, title, category etc on the featured slider. And there are lots of additional features available to customize your site. Please find the details of our theme AcmeBlogPro here. http://www.acmethemes.com/themes/acmeblogpro/
If you have further query, please feel free to ask.