Crossword Genius

Pregnant royal attendants? (6,2,7)

Ross

I believe the answer is:

ladies in waiting

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'pregnant royal attendants?' is the definition.
The definition and answer can be both people as well as being plural nouns.
Perhaps you can see a link between them that I can't see?

This is the entire clue.

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I've seen this clue in the Sydney Morning Herald.
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