1. quack   unprincipled person or one given to sin.   person in excess of number required.   person who derives pleasure in cruelty.   charlatan or pretender.   Hint Half-n-half Clue   2. shyster   actor or actress.   person without professional ethics or tricky lawyer.   boxer.   person who peeps in stealthy manner.   Half-n-half Clue   3. wastrel   person suffering from severe mental disorder.   one who wastes money.   uncultured lawless person or bully.   profligate person.   Half-n-half Clue   4. virtuoso   adherents of a school of thought or religious faction.   person causing sabotage or intentional damage to property.   learned man or authority on a topic.   accomplished artist or art-connoisseur.   Half-n-half Clue   5. sibling   teacher or pedant.   person who doubts and questions.   brother or sister.   cheat.   Half-n-half Clue   6. pundit   person who is excessively proper.   person of wealth and prominence.   person without professional ethics or tricky lawyer.   learned man or authority on a topic.   Half-n-half Clue   7. surrogate   one bearing blame because of others.   deputy or substitute.   one who wastes money.   unprincipled person or one given to sin.   Half-n-half Clue