Answer:

moils

Answer	Crossword Clue
MOILS	Works hard
MOILS	Slaves
MOILS	Works like a dog

MOILS	Eddies
MOILS	Drudges
MOILS	Works hard.
MOILS	Drudges.
MOILS	Works long and hard
MOILS	Churns
MOILS	Labors
MOILS	Slaves away

Crossword

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