Answer:

school

Answer	Crossword Clue
SCHOOL	Reform, for one
SCHOOL	Word with trade or finishing
SCHOOL	Take three of three

SCHOOL	Class-y place?
SCHOOL	Group of fish
SCHOOL	Train
SCHOOL	Word after high or tech
SCHOOL	Art movement
SCHOOL	Hogwarts, e.g.
SCHOOL	Ocean gathering
SCHOOL	Cod congregation

SCHOOL	Flock in the water
SCHOOL	Fish formation
SCHOOL	Nine-month interruption of summer vacation?
SCHOOL	Place that has class
SCHOOL	Brown or Rice
SCHOOL	Where Mary's little lamb showed up
SCHOOL	Destination for yellow buses
SCHOOL	Julliard, e.g.

SCHOOL	Principal's place
SCHOOL	Fishy gathering?
SCHOOL	Grouper group
SCHOOL	Place of learning
SCHOOL	Training center
SCHOOL	Instructional institution
SCHOOL	Place for pupils
SCHOOL	Educate

SCHOOL	Group of groupers
SCHOOL	Any of the Ivies
SCHOOL	Dean's employer
SCHOOL	Teacher's employer
SCHOOL	Class-conscious place?
SCHOOL	Brown, e.g.
SCHOOL	Fishy bunch
SCHOOL	Teach.

SCHOOL	Cooper Union is one.
SCHOOL	A large number of fish.
SCHOOL	The "S" in P. S.
SCHOOL	Discipline.
SCHOOL	It's recessed till next year.