I know this question has been asked earlier as well but no body seemed to have replied on that.
Is there any Marker Clustering support in Android Arcgis SDK ?
Is there any third party solutions available to make the clustering possible on the map?
I'm not sure I understand the MapTip part of the question, but a Cluster Renderer is planned for a release late in 2017. As always, plans may change, but this is where it stands right now. Thanks for the request!