Answer:

cork

Answer	Crossword Clue
CORK	Champagne stopper
CORK	Stopper
CORK	Stopper or popper

CORK	Party popper
CORK	Irish seaport
CORK	New Year's Eve projectile?
CORK	Wine bottle stopper
CORK	Champagne sealer
CORK	Cobh's county
CORK	Irish seaport or its county
CORK	New Year's Eve popper

CORK	Bulletin board material
CORK	Eco-friendly tile material
CORK	Fishing float
CORK	County of southwest Ireland
CORK	Bottleneck blocker
CORK	Bottle stopper
CORK	Feature of most wine bottles
CORK	Stop for a sommelier?

CORK	Home of the Blarney stone
CORK	Jug plug
CORK	Merlot stopper
CORK	Port five miles from the Blarney Stone
CORK	Popgun projectile
CORK	Screw cap alternative
CORK	Wine bottle feature
CORK	STOPPER

CORK	Sommelier's offering
CORK	Wine bottle topper
CORK	County of the Blarney Stone
CORK	Stop up
CORK	Stopple
CORK	January 1 popper
CORK	Sort of stopper
CORK	Wine-bottle stopper

CORK	Bulletin-board material
CORK	Oak-bark product
CORK	It's south of Limerick
CORK	Potential party projectile
CORK	Top to be popped