Answer:

repiner

Answer	Crossword Clue
REPINER	Complaining person
REPINER	One who complains
REPINER	Complainer.

REPINER	Fretful one
REPINER	Lydia Languish, e.g.
REPINER	Discontented one
REPINER	Grumbler

Crossword

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