Tests solar movement (5)
I believe the answer is:
orals
'tests' is the definition.
(oral is a kind of test)
'solar movement' is the wordplay.
'movement' is an anagram indicator (letters move around).
'solar' is an anagram of 'ORALS'.
(Other definitions for orals that I've seen before include "Spoken exams" , "Tests" .)
I've seen this clue in The Daily Express.
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