1) HS group 2) HS promoter 3) HS supporter 4) PS adjunct 5) PS group 6) PS org 7) PS organisation 8) PS supporter 9) After school org 10) After-hours school gp 11) After-hours school grp 12) After-school bake sale org 13) After-school event sponsor 14) After-school gp 15) After-school group 16) After-school grp Found on https://www.crosswordclues.com/clue/pta