maybe try CSS like this
.entry-meta {
display: none;
}
otherwise if that CSS change doesn’t work for you, please start a topic in the theme specific support forum area
https://wordpress.org/support/theme/gillian/
Thank you very much @contentiskey, I had tried that CSS unsuccessfully by copying and pasting it when it was formatted just as you have laid it out (for example with two line breaks) but when I saw your reply I decided to retype it and lo! it worked. I’ve noticed that a number of other people have reported no success in using this and similar text so maybe this post might help some of them if they were like me and just tried copying and pasted broken-line texts!
