Hi
This is a modest suggestion. Sometimes it’s not clear we can click/or not to the header of a pages field. I’m mixing pages type with pagesdisplay inside my site.yml file, sometimes the header is clickable, sometimes not.
I would suggest to set a simple icon after the link, for example, the parent icon could suit.
You could set an icon after the headline yourself?
The headline only becomes a link if the headline links to the parent page of the listed children…
Yes I did it by adding this css to a custom panel css file :
.k-headline .k-link:after{content:'';width:1em;height:1em;display:inline-block;margin-left:7px;background-image: url(data:image/svg+xml;base64,CjxzdmcgYXJpYS1oaWRkZW49InRydWUiIGNsYXNzPSJrLWljb25zIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIG92ZXJmbG93PSJoaWRkZW4iPgoKICAgICAgPHBhdGggZD0iTTE0LDZIMy40bDQtNEw2LDAuNkwwLjMsNi4zYy0wLjQsMC40LTAuNCwxLDAsMS40TDYsMTMuNEw3LjQsMTJsLTQtNEgxM3Y3aDJWN0MxNSw2LjQsMTQuNiw2LDE0LDZ6IiAvPgoKPC9zdmc+);}
Just tought it could be implemented by default. But maybe it’s just me 
If you’d like to see this, you’d better add it to the ideas’ repo. Here it will probably get lost.
BTW. If you don’t need a special icon, you can simply use an emoji in the blueprint after the headline
headline: Photography ↪︎
Haha this is even smarter ! Didn’t think about that !
↵ is not interpreted as emoji, that will be my last word
Thank you Sonja !