Chum possibly made from two portions of ground meat (8)
I believe the answer is:
teammate
'chum' is the definition.
(thesaurus)
'made from two portions of ground meat' is the wordplay.
I cannot quite understand how this works, but
an anagram of 'meat' is 'team' which is within the answer.
The remaining letters 'mate' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
'possibly' acts as a link.
Can you help me to learn more?
(Another definition for teammate that I've seen is " fellow player".)