Answer:

LEAD

Answer	Crossword Clue
LEAD	Pencil innard?
LEAD	Sinker material
LEAD	Spearhead

LEAD	Heavy metal
LEAD	Hold first place
LEAD	Pb, on the periodic table
LEAD	Precedes belly and foot
LEAD	Preceeds belly and foot
LEAD	Starring role
LEAD	Take charge of
LEAD	Pb

LEAD	Picture part
LEAD	Something to go on
LEAD	Dog leash
LEAD	Galena component
LEAD	Go first
LEAD	Pencil refill
LEAD	Detective's need
LEAD	Take charge

LEAD	Sometime gasoline ingredient
LEAD	X ray blocker
LEAD	Bullets
LEAD	Alpha dog's place
LEAD	Sleuth's clue
LEAD	Direct
LEAD	Metal used in storage batteries
LEAD	Command

LEAD	Be off the base, perhaps
LEAD	Big part
LEAD	Distance from a base
LEAD	Promising clue
LEAD	Detective's find
LEAD	Makeup of a heavy balloon?
LEAD	Principal
LEAD	Show the way

LEAD	Element whose symbol is Pb
LEAD	X-ray vision thwarter
LEAD	Chair, say
LEAD	Clue
LEAD	Coveted role