Answer:

irritant

Answer	Crossword Clue
IRRITANT	Poison ivy sap, e.g.
IRRITANT	The pea, to the princess
IRRITANT	Pest

IRRITANT	Pain in the neck
IRRITANT	Cause of annoyance.
IRRITANT	Agent of annoyance.
IRRITANT	Galling.
IRRITANT	Sand in a shoe, i.e.
IRRITANT	Tear gas, e.g.
IRRITANT	Cigar smoke, to some
IRRITANT	Princess's pea, e.g.

IRRITANT	Pebble in one's shoe, e.g.
IRRITANT	Smoke in one's eyes, say
IRRITANT	Cause of a rash
IRRITANT	Dripping faucet, perhaps

Crossword

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