What circles lack 4 letters

Crossword clues for What circles lack 4 letters

Answer	Clue
ENDS	What circles lack
ENDS	What a circle lacks
ENDS	Circle's lack
END	Circle's lack
TOOTHDECAY	Condition contributed to by a lack of [circled letters]
NOTHINGINCOMMON	Lack of similar interests, and what the three long answers with circled letters have?