Answer:

omitter

Answer	Crossword Clue
OMITTER	Skipper?
OMITTER	Forgetful one
OMITTER	Neglectful one

OMITTER	Name dropper?
OMITTER	Forgetful type
OMITTER	One leaving something out

Crossword

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