1) Detachable covers 2) Notebooks 3) Ringed school supplies 4) School store supplies 5) School-store supplies 6) Sheet holders 7) Some school supplies Found on https://www.crosswordclues.com/clue/binders
Increase yield, but also stabilize a meat emulsion and improve cook yields. Also disguised under the following names Found on http://www.encyclo.co.uk/local/21759