Answer:

pupils

Answer	Crossword Clue
PUPILS	Teacher's charges
PUPILS	Class members
PUPILS	The eyes have them

PUPILS	Irises surround them
PUPILS	Parts of irises
PUPILS	Ones who have class?
PUPILS	Schoolchildren
PUPILS	Ones being taught
PUPILS	Study group
PUPILS	Learners.
PUPILS	Teacher's concern.

PUPILS	Certain bus riders.
PUPILS	Eye parts
PUPILS	Apprentices
PUPILS	Areolae surround them
PUPILS	Teacher's head count

Crossword

a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.