Based on the clue 'characterized by the use of primitive tools its th...', what is the answer?

Based on the clue 'characterized by broken colors this late flowering...', what is the answer? Based on the clue 'characterized by chills swollen lymph glands this...', what is the answer? Based on the clue 'characterized by concealed difficulty be careful', what is the answer? Based on the clue 'characterized by good flavor this type of olive oi...', what is the answer? Based on the clue 'characters die in this order ruth keith david rico...', what is the answer? Based on the clue 'characters from this nickelodeon show are seen her...', what is the answer? Based on the clue 'characters from this play circling uranus are arie...', what is the answer? What is associated with: characters have been rejected by their author in a 1921 play by this italian?