We are working on building Clan feature to our time. As of now, API to return group details just returning Entity ID not any other needed basic info's like Display Name or title data.
I have gone through some of the questions in forum where it was obvious that you guys are working on it.
Could you guys please provide release date for those features. We are planning to go for some alternate solution if the feature update from Playfab would take time. If there is any concrete release date please let us know so that we can hold of our development for this feature until then.