Crossword Clue:

A stopper or plug

Answer	Crossword Clue
TAP	Plug or stopper.
EAR	Place for a ring or a plug
WHOA	Stopper that should work with almost any plug

CORK	Stopper or popper
CORK	Stopper or bobber
LID	Stopper or topper
CORK	City, county or stopper