Trials (5)
I believe the answer is:
tests
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">trials</span>' is the definition.<br/ ><span class="explanation-format__explanation">('test' can be a synonym of 'trial')</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for tests that I've seen before include "Trials -- tribulations" , "Trials for cricketers" , "Trials to see if something works" , "Tries out" , "Puts to proof at cricket matches" .)