1. successor of prophet Mohammed; official head of Islam   alliance   simony   caliph, Khalifa   caste   Hint Half-n-half Clue   2. wise experienced practical politician involved in management of State affairs   Brahma   custom   statesman   feudalism   Half-n-half Clue   3. scientist who studies man and society   status quo   infantry   relics   anthropologist   Half-n-half Clue   4. state of affairs as of some date or event   anthropologist   custom   status quo   nomad   Half-n-half Clue   5. schedule of duties on goods   tariff   sage   alliance   covenant   Half-n-half Clue   6. wanderer who roams different pastures   nomad   federation   fief   daimyo   Half-n-half Clue   7. wise and holy person   terrorism   zaibatsu   sage   status quo   Half-n-half Clue