Answer:

drill

Answer	Crossword Clue
DRILL	Master or sergeant
DRILL	Rigorous practice
DRILL	Rehersal

DRILL	Team practice activity
DRILL	Go after oil
DRILL	Look for gushers
DRILL	Practice
DRILL	Boot camp workout
DRILL	One might have a little bit
DRILL	Put through the paces
DRILL	Intense practice

DRILL	Try to find oil
DRILL	Machine with bits
DRILL	Practice exercise
DRILL	Dentist's tool
DRILL	"You know the ..."
DRILL	Boring device
DRILL	Dentist's device
DRILL	It's boring

DRILL	Try for a gusher
DRILL	Boring tool?
DRILL	Whiny dental tool
DRILL	Dental device
DRILL	Oil field feature
DRILL	Military
DRILL	Practice session
DRILL	Word after fire or power

DRILL	Base exercise
DRILL	Marching practice
DRILL	Sergeant's task
DRILL	Carpentry tool
DRILL	Sergeant's chore
DRILL	Machinist's tool
DRILL	Military practice
DRILL	Repetitive practice

DRILL	Marching order
DRILL	Private practice
DRILL	Boring thing
DRILL	Home Depot purchase
DRILL	Woodworking tool

Crossword

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