Answer:

SQUIRTGUN

Answer	Crossword Clue
SQUIRTGUN	Water pistol
SQUIRTGUN	One may soak a competitor
SQUIRTGUN	Toy in a water fight

SQUIRTGUN	Kid's pistol
SQUIRTGUN	Water heater?

Crossword

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