Answer:

zeroing

Answer	Crossword Clue
ZEROING	Resetting, in a way
ZEROING	Killing, as a bill
ZEROING	Closing (in on)

ZEROING	Fine tuning
ZEROING	Targeting (with "in on")
ZEROING	Homing (in on)

Crossword

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