1. influential or powerful person.   quisling   pessimist   magnate   patriarch   Hint Half-n-half Clue   2. forerunner or person proclaiming approach of another.   precursor   monomaniac   militant   shrew   Half-n-half Clue   3. beginner or new convert.   miscreant   mountebank   proponent   neophyte   Half-n-half Clue   4. person who thinks and views things positively.   philistine   predator   martyr   optimist   Half-n-half Clue   5. person who studies extinct organisms and prehistoric life.   monotheist   optimist   palaeontologist   orator   Half-n-half Clue   6. doctor specializing in children's diseases.   pediatrician   obstetrician   braggart   pariah   Half-n-half Clue   7. bond servant or worker.   opthalmologist   peon   pragmatist   obstetrician   Half-n-half Clue