Answer:

screwball

Answer	Crossword Clue
SCREWBALL	Nut
SCREWBALL	Beantown pitch?
SCREWBALL	Eccentric

SCREWBALL	Loon
SCREWBALL	Kook
SCREWBALL	Flake
SCREWBALL	Pitcher's ploy
SCREWBALL	Like some comedies
SCREWBALL	Hubbell's famed pitch.
SCREWBALL	Al Schacht impersonation.
SCREWBALL	Type of pitch, on the diamond.

SCREWBALL	Pitcher's specialty.
SCREWBALL	Zany.
SCREWBALL	Weirdo
SCREWBALL	Tricky pitch

Crossword

a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.