Clue: Broadway's "Once --- a Mattress"

We have 1 answer for the crossword clue Broadway's "Once --- a Mattress".

Possible Answers:

• UPON

Related Clues:

• "Once __ a Mattress"
• Conversant with
• Second word in a fairy tale
• Stratford-___-Avon
• "When You Wish --- a Star"
• In the know
• Knowledgeable about
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• Nut bearer
• On top
• Very familiar with
• Straddling
• Bone ___ (study)
• "Once __ a Crime ..."; '92 John Candy movie
• On top of
• "___ my word!"
• Well-briefed about
• "___ the Roof" (Drifters song)
• Diner on the hill?
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• Second word in many fairy tales
• ... and 50 more.

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