1) Better honed 2) Capote co-star Catherine 3) Catherine of Full Frontal 4) Comparatively quick-witted 5) Exceptional shot 6) Finer honed 7) Less dull 8) Less obtuse 9) More acute 10) More acutely sensitive 11) More alert 12) More anxious 13) More anxious to take a cut 14) More astute 15) More discerning Found on https://www.crosswordclues.com/clue/keener