Company that was floated to avoid liquidation (3)

I believe the answer is:

ark

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'company that was floated to avoid liquidation' is the definition.
Although both the answer and definition are singular nouns, I don't understand how they can define each other.

This is the entire clue.

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(Other definitions for ark that I've seen before include "Biblical vessel" , "Rescue boat" , "Animal rescue transport" , "protection for couples that rose in bad weather" , "Flood vessel; box (arch.)" .)

I've seen this clue in The Globe and Mail.

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