Crossword Genius

Expecting difficulty? (7,8)

Ross

I believe the answer is:

morning sickness

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'difficulty?' is the definition.
The answer and definition can be both states of affairs as well as being singular nouns.
Maybe there's a link between them I don't understand?

I can't explain the rest of the clue.

Can you help me to learn more?

(Another definition for morning sickness that I've seen is " Expecting trouble".)

I've seen this clue in The Guardian.
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