Clue: Iffy sched. letters

Answer: TBA

Length: 3

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Similar Clues:

• Schedule letters (e.g. ETA with 3 letters)
• Letters for an open schedule slot (TBA with 3 letters)
• Uncertain scheduling letters (TBA with 3 letters)
• Schedule slot letters (TBA with 3 letters)
• Letters for a gap in the schedule (TBA with 3 letters)
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• Scheduling letters (MTWTF with 5 letters)
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