1. person who acts as a go between.   devotee   factotum   insolvent   liaison   Hint Half-n-half Clue   2. prima donna or chief singer in an opera.   diva   martinet   renegade   felon   Half-n-half Clue   3. person who compiles dictionaries.   malcontent   laity   despot   lexicographer   Half-n-half Clue   4. person who is excessively selfish.   iconoclast   egoist   ecologist   drone   Half-n-half Clue   5. lewd and sexually aggressive male.   impostor   malefactor   lecher   herpetologist   Half-n-half Clue   6. investigator or harsh questioner.   libertine   incendiary   inquisitor   lout   Half-n-half Clue   7. doctor specializing in women's ailments.   laity   virago   vagabond   gynaecologist   Half-n-half Clue