Answer:

vexes

Answer	Crossword Clue
VEXES	Perturbs
VEXES	Bugs
VEXES	Irks

VEXES	Irritates
VEXES	Ruffles feathers
VEXES	Confounds
VEXES	Nettles
VEXES	Aggravates
VEXES	Provokes
VEXES	Really gets to
VEXES	Annoys

VEXES	Besets.
VEXES	Irks.
VEXES	Annoys.
VEXES	Plagues.
VEXES	Disquiets.
VEXES	Peeves
VEXES	Torments
VEXES	Harries

VEXES	Bothers
VEXES	Piques
VEXES	Is galling to
VEXES	Puzzles

Crossword

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