Yes! Sometimes you may want to show the overall number of backlinks in your book but you don't want to see the number on each clip. This is possible through the 'Metrics and Backlinks' settings in the book overview.
Go to the Overview section when editing your book:
From there select 'Metrics & Backlinks' from the top menu, below the book title:
You will then see a list of all your metrics, with toggle switches to turn them on or off. From this screen you can set up websites to track backlinks to and also stop them from being shown on each clip.
To set up a backlink select the Backlinks button in the top left; highlighted below. Once you have a backlink set up, you will be able to toggle off that metric in the metrics list which is highlighted below:
After you've done that, your total backlinks will be counted in the Summary but be hidden on each clip:
Edit view:
Public book view: