Newly initiated into food authority (9)
I believe the answer is:
dietitian
'food authority' is the definition.
The definition and answer can be both people as well as being singular nouns.
Maybe you can see an association between them that I don't see?
'newly initiated' is the wordplay.
'newly' indicates an anagram.
'initiated' anagrammed gives 'DIETITIAN'.
'into' is the link.
Can you help me to learn more?
(Other definitions for dietitian that I've seen before include "Medical adviser" , "Initiated for food expert" , "one who regulates courses" , "Food specialist" , "Food guru" .)