1. lewd and sexually aggressive male.   lecher   dipsomaniac   entrepreneur   etymologist   Hint Half-n-half Clue   2. person who studies reptiles.   diva   libertine   entomologist   herpetologist   Half-n-half Clue   3. person who holds opinion contrary to accepted belief.   dupe   killjoy   impostor   heretic   Half-n-half Clue   4. person who studies human races.   ethnologist   iconoclast   gynaecologist   luminary   Half-n-half Clue   5. person who worries without cause (about his health).   hypochondriac   forebears   gourmet   horde   Half-n-half Clue   6. a dwarf or a midget, underground spirit.   gnome   martinet   libertine   despot   Half-n-half Clue   7. person who studies words and their formation.   epistemologist   malcontent   etymologist   dipsomaniac   Half-n-half Clue