Crossword Puzzle Shrinks' org.

Clue: Shrinks' org.

Most organized (NEATEST with 7 letters)
Ductless organ (SPLEEN with 6 letters)
Famed labor-brotherhood organizer (APRANDOLPH with 10 letters)
Organic portion of soil (HUMUS with 5 letters)
Like some organs (e.g. INTERNAL with 8 letters)
Very tiny organism (AMOEBA with 6 letters)
Private organization? (ARMY with 4 letters)
Human organ feeder (AORTA with 5 letters)
Sch. orgs. (PTAS with 4 letters)
Geraldine who co-founded the National Organization of Italian American Women (FERRARO with 7 letters)