While there is not a method to show this cluster summary as a section of a view, much of the contents of the summary view can be reproduced as a view using this new dimension as a group.
There is a great article about this feature here: Understanding Clustering in Tableau 10 | Bora Beran
As for this specific request, you could add a feature request idea to the Ideas area of the forums to add this item for voting. Most of the new features developed for Tableau are derived from these ideas.
I hope this assists.