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"organizer" is also used as a crossword clue. If that's what you saw, the answer is often sorter (6 letters).
Definitions
A person or tool that arranges plans, events, or information.
Word origin
From organize + -er.
Used in a sentence
“I'll add that meeting to my organizer.”
“desk organizer”
“makeup organizer”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer2 curated clues
01“Arranger”9 letters
02“Event planner”9 letters
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