When you are on the clustered dataset, you can click on "Edit the recipe that built this dataset". This works with all recipes. However, note that there are no real options for a clustering recipe. What you might want is to go back to the "Analysis" where you did the tuning of your clustering algorithm.Unfortunately, there is no direct link for that, you have to go back to the initial dataset.
Also note that for the moment you cannot "overwrite" a clustering recipe. If you want to change the settings in the Analysis and redeploy the clustering recipe, it will create another clustered dataset. We will soon be adding this ability to change the settings of an already-deployed recipe.