Crossword Genius

An adverse proposal? (7-6)

Ross

I believe the answer is:

counter-motion

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'an adverse proposal?' is the definition.
The definition suggests a singular noun which matches the answer.

'adverse proposal?' is the wordplay.
'adverse' becomes 'counter' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'proposal?' becomes 'motion' (proposal at a meeting).
'counter'+'motion'='COUNTER-MOTION'

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