Answer:

slate

Answer	Crossword Clue
SLATE	Blackboard
SLATE	List of candidates
SLATE	Roof material

SLATE	Roofing material
SLATE	Metamorphic rock
SLATE	Pool table material
SLATE	Electoral list
SLATE	Agenda
SLATE	Fine-grained rock
SLATE	Roofing stone
SLATE	Roofing option

SLATE	Patio stone
SLATE	Schedule
SLATE	It's used to make black Go stones
SLATE	Online magazine owned by the Washington Post Company
SLATE	Online magazine
SLATE	Walkway material
SLATE	List of runners
SLATE	Political ticket

SLATE	Election list
SLATE	Ticket
SLATE	Chalkboard material
SLATE	Pool table layer
SLATE	Group of candidates
SLATE	November ticket
SLATE	Chalkboard
SLATE	Nominee list

SLATE	List for electors
SLATE	Easily split rock
SLATE	Pool table rock
SLATE	Candidate list
SLATE	Mr. ... (Fred Flintstone's boss)
SLATE	School board?
SLATE	Flintstone boss
SLATE	Quarry boss in Bedrock

SLATE	Rock on the roof
SLATE	Flintstone's boss
SLATE	Party's candidates
SLATE	Grayish shade
SLATE	List of nominees