1. one who suffers or dies for a cause.   philologist   protégé   martyr   nihilist   Hint Half-n-half Clue   2. doctor specializing in foot ailments.   polygamist   protégé   miscreant   podiatrist   Half-n-half Clue   3. person's descendants or future generations.   megalomaniac   toady   poseur   posterity   Half-n-half Clue   4. doctor who deals with eyes and vision disorders.   opthalmologist   minion   poseur   optimist   Half-n-half Clue   5. person who collects coins.   numismatist   narcissist   mendicant   progenitor   Half-n-half Clue   6. a person who cheats or preys on others.   posterity   predator   pedestrian   megalomaniac   Half-n-half Clue   7. ancestor or forefather.   progenitor   philatelist   pediatrician   pauper   Half-n-half Clue