Answer:

surgery

Answer	Crossword Clue
SURGERY	Operating system?
SURGERY	Operating room
SURGERY	Quip, part 2

SURGERY	Branch of medical science.
SURGERY	Department in a hospital.
SURGERY	Face-lift, e.g.
SURGERY	Doctor's office, to Brits
SURGERY	It's for skilled operators
SURGERY	It may leave you in stitches

Crossword

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