1. person who loves mankind and does good to them.   Hint First letter clue   2. person who collects coins.   First letter clue   3. adherent of a party or cause.   First letter clue   4. person who enjoys pain being inflicted on himself.   First letter clue   5. person who specializes in straightening teeth.   First letter clue   6. person who thinks and views things positively.   First letter clue   7. person who studies extinct organisms and prehistoric life.   First letter clue