Being superior, he's not in favour of cooking rice (7)
I believe the answer is:
officer
'being' is the definition.
(officer is a kind of being)
'superior he's not in favour of cooking rice' is the wordplay.
I cannot quite understand how this works, but
'not' could be 'o' (I've seen this in other clues) and 'o' is located in the answer.
an anagram of 'rice' is 'icer' which is present in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for officer that I've seen before include "Person with authority in the forces" , "Public servant" , "Police(wo)man" , "Higher-ranking soldier" , "9 across" .)