Crossword Genius

With weapon raised prepare for contest

Ross

I believe the answer is:

warmup

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'prepare for contest' is the definition.
I can't judge whether this defines the answer.

'with weapon raised' is the wordplay.
'with' becomes 'w' (abbreviation).
'weapon' becomes 'arm' (synonyms).
'raised' becomes 'up' (similar in meaning).
'w'+'arm'+'up'='WARMUP'

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I've seen this clue in The Daily Mail.
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