Goat guzzling soup, gum (9)
I believe the answer is:
angophora
'gum' is the definition.
I don't know anything about this answer so I cannot tell whether this works.
'goat guzzling soup' is the wordplay.
'goat' becomes 'angora' (Angora is an example).
'guzzling' means one lot of letters goes inside another (I've seen this in other clues).
'soup' becomes 'pho' (type of Vietnamese soup).
'angora' enclosing 'pho' is 'ANGOPHORA'.
Can you help me to learn more?
(Another definition for angophora that I've seen is " tree".)