See non-clergy turning faithful (5)
I believe the answer is:
loyal
'faithful' is the definition.
(similar in meaning)
'see non-clergy turning' is the wordplay.
'see' becomes 'lo' (archaic exclamation meaning 'look!').
'non clergy' becomes 'lay' (I can't justify this - if you can you should believe this answer much more).
'turning' says the letters should be written backwards.
'lay' written backwards gives 'yal'.
'lo'+'yal'='LOYAL'
Can you help me to learn more?
(Other definitions for loyal that I've seen before include "True to one's allegiance" , "Faithful to country, cause or friend" , "one can trust" , "Unwaveringly devoted to friend or cause" , "Trustworthy" .)