Answer: graymatter

AnswerCrossword Clue
GRAYMATTER

Neither black nor white chemical stuff?

GRAYMATTER

Intellect, informally

GRAYMATTER

Brains

GRAYMATTER
Brain
GRAYMATTER
Brain, so to speak
GRAYMATTERIntellect.
GRAYMATTERIntellect
GRAYMATTERCranial mass
GRAYMATTERIt's in your head
GRAYMATTERColorful intelligence