School supply that might come in stick form

GLUE

Think of what holds paper together and often dries clear; kids might use it for arts and crafts.

This clue hints at a common classroom item that can be found in solid stick form, like a glue stick. The word "stick" is a direct nod to the portable, easy-to-use version of glue kids often carry in their pencil cases. It’s a straightforward definition with no hidden wordplay—just a simple way to describe how glue is packaged for school use.