Answer:

COBS

Answer	Crossword Clue
COBS	Kernel holders
COBS	Cygnets' dads
COBS	Male swans

COBS	Clambake leavings
COBS	Corn holders
COBS	Picnic discards
COBS	Clambake discards
COBS	Corn cores
COBS	Corn remnants
COBS	Picnic trash
COBS	Picnic remnants

COBS	Corn refuse
COBS	Corn throwaways
COBS	Corn units
COBS	Corn eater's discards
COBS	Cores of ears
COBS	They're found inside ears
COBS	They're found under kernels
COBS	Interiors of some ears

COBS	Clambake trash
COBS	Corn discards
COBS	Edible ears
COBS	Picnic refuse
COBS	Picnic throwaways
COBS	Fathers of cygnets
COBS	Corn eaters' leftovers
COBS	Corn castoffs

COBS	Pens' counterparts
COBS	Male swans.
COBS	Short, thick-set horses.
COBS	Short, thick set horses.
COBS	Short, thickset horses.
COBS	Small horses.
COBS	Certain horses.
COBS	Swans.

COBS	Short-legged horses
COBS	Short, thickset horses
COBS	Kernal holders
COBS	Corny throwaways
COBS	Pens' mates

Crossword

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