Clan can take percentage from loot
So here is the idea:
Clan (co-)leaders can set a percentage of 1-15%, to be taken from all the loot gained by players within the clan.
This means from clanwars and multiplayer-battles.
All this gold and (dark) elixer goes in the "crew vault". At the end of every season the gold and elixer will be devided between the clanmembers. The leaders and co-leaders can chose how this will be devided. For example: equally on the amount of troops donated or on the amount of trophies gained.
To prevent clans to misuse this new feature, only clans with 10 members or more will be able to use this feature.