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As an experiment, attempt to get away (3-3)

Ross

I believe the answer is:

try-out

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'as an experiment' is the definition.
I can't tell whether this defines the answer.

'attempt to get away' is the wordplay.
'attempt to' becomes 'try' (I've seen this in other clues).
'get' says to put letters next to each other.
'away' becomes 'out' (synonyms).
'try'+'out'='TRY-OUT'

Can you help me to learn more?

(Another definition for try-out that I've seen is " Test performance".)

I've seen this clue in the Evening Standard.
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