Crossword Genius

Tries a different pole in camp shelters (5)

Ross

I believe the answer is:

tests

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'tries' is the definition.
(I know this)

I don't understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for tests that I've seen before include "Trials for cricketers" , "Critically examines" , "Tries out" , "Trials to see if something works" , "Trials -- tribulations" .)

I've seen this clue in The Independent.
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