Puts through the wringer (5)
I believe the answer is:
tests
'puts through the wringer' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for tests that I've seen before include "Tries out" , "Major cricket matches" , "Trials for cricketers" , "Trials, exams" , "Puts to proof at cricket matches" .)