Answer:

definer

Answer	Crossword Clue
DEFINER	Giver of meaning
DEFINER	Lexicographer, at times
DEFINER	Explainer.

DEFINER	Expositor.
DEFINER	Noah Webster, for one
DEFINER	Dictionary writer, e.g.

Crossword

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