Answer:

tumor

Answer	Crossword Clue
TUMOR	Swelling
TUMOR	Protuberance
TUMOR	Surgeon's target

TUMOR	Surgeon's target, perhaps
TUMOR	Abnormal growth
TUMOR	Surgeon's target, sometimes
TUMOR	Abnormal cell growth
TUMOR	Chemo target

Crossword

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