Answer:

stoking

Answer	Crossword Clue
STOKING	Tending, as a fire
STOKING	Adding fuel to
STOKING	Fireman's function

STOKING	Stirring up the fire.
STOKING	Stirring up
STOKING	Feeding
STOKING	Feeding, as a fire

Crossword

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