Crossword Genius

Possible outcome of congress in Minsk? (7,8)

Ross

I believe the answer is:

morning sickness

I'm a little stuck... Click here to teach me more about this clue!

'possible outcome' is the definition.
Although both the answer and definition are singular nouns, I can't understand how they can define each other.

'of congress in minsk?' is the wordplay.
'of' is an anagram indicator (the answer comes from or \'of\' the letters).
'congress'+'in'+'minsk'='congressinminsk'
'congressinminsk' is an anagram of 'MORNING-SICKNESS'.

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 Independent.
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