Chap’s not at liberty to accept unknown supplier of sugar or butter (9)
I believe the answer is:
sycophant
'butter' is the definition.
The definition and answer can be both people as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
'chap's not at liberty to accept unknown supplier of sugar' is the wordplay.
I cannot quite see how this works, but
'not' could be 'nt' (synonyms) and 'nt' is found within the answer.
'unknown' could be 'y' (algebra) and 'y' is located in the answer.
'of' could be 'o' and 'o' is found within the answer.
an anagram of 'chap' is 'cpha' which is located in the remaining letters.
A single letter 's' remains which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
'or' acts as a link.
Can you help me to learn more?
(Other definitions for sycophant that I've seen before include "obsequious one" , "Creep" , "Crawler, toady" , "Servile flatterer" , "Austen's Mr Collins?" .)