Tries out ceremonies (5)
I believe the answer is:
rites
'ceremonies' is the definition.
(religious rites)
'tries out' is the wordplay.
'out' is an anagram indicator (out can mean wrong or inaccurate).
'tries' with letters rearranged gives 'RITES'.
(Other definitions for rites that I've seen before include "Ceremonial forms" , "Social customs" , "formal procedure" , "Tires of religious ceremonies" , "Ceremonies or services" .)