Answer:

antlion

Answer	Crossword Clue
ANTLION	Doodlebug
ANTLION	Grown-up doodlebug
ANTLION	Adult doodlebug

ANTLION	Kind of insect.
ANTLION	Pit-digging insect
ANTLION	Predatory insect
ANTLION	Doodlebug's parent

Crossword

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