Crossword Puzzle Association of end users?

Clue: Association of end users?

It officially ended 12/5/33 (PROHIBITION with 11 letters)
Official ending (ESE with 3 letters)
Slip-on shoes endorsed in "The Official Preppy Handbook" (PENNYLOAFERS with 12 letters)
Most shaggy / Hotel offering / Actress Goldie (HAIRIESTROOMHAWN with 16 letters)
Street vendor's offering (e.g. FRANK with 5 letters)
Ending for some schools (ISM with 3 letters)
Endorser's need (PEN with 3 letters)
Offshoot groups (SECTS with 5 letters)
"Northeast" ending (ERN with 3 letters)
Tell the ending, e.g. (SPOILIT with 7 letters)