Key worker with Ness monster tale, we hear? (9)
I believe the answer is:
locksmith
'key worker' is the definition.
(someone who works with keys and locks)
'with ness monster tale we hear?' is the wordplay.
'with' is a charade indicator (letters next to each other).
'ness monster' becomes 'locks' (I can't explain this - if you can you should believe this answer much more).
'tale' becomes 'myth' (I have seen 'Tall tale' mean 'myth' so perhaps 'tale' could also mean 'myth').
'we hear?' indicates a 'sounds like' (homophone) clue.
'myth' is a homophone of 'mith'.
'locks'+'mith' is 'LOCKSMITH'.
Can you help me to learn more?
(Other definitions for locksmith that I've seen before include "Maker of secure fasteners" , "Maker of security devices" , "laughing stock" , "Security expert" , "key figure" .)