Crossword Genius

On strike following unsuccessful wintry experiment (3,3)

Ross

I believe the answer is:

try out

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

'experiment' is the definition.
(thesaurus)

'on strike following unsuccessful wintry' is the wordplay.
I cannot quite see how this works, but
'unsuccessful' could be 'out' (similar in meaning) and 'out' is present in the answer.
The remaining letters 'try' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).

Can you help me to learn more?

(Other definitions for try out that I've seen before include "Sample" , "Taste" , "Put to experimental use" , "Test and evaluate" .)

I've seen this clue in The Independent.
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