Crossword puzzle clue "it'll fly if it's airtight"

Here are the possible solutions for it'll fly if it's airtight clue

Answer
Clue
Relevancy
alibi
Clue
It'll fly if it's airtight
It may be airtight
It might be airtight
Suspect's "airtight" excuse
One might be airtight
It's best when it's airtight
It's best when airtight
Airtight story
Definition
the plea in a criminal charge of having been elsewhere at the relevant time

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