Cornered brick carrier holding returned chicken product (6)
I believe the answer is:
hogged
'cornered brick' is the definition.
Both the answer and definition are adjectives. Perhaps they are linked in a way I don't understand?
'carrier holding returned chicken product' is the wordplay.
'carrier' becomes 'hod' (I've seen this before).
'holding' is an insertion indicator.
'returned' says the letters should be written in reverse.
'chicken product' becomes 'egg' (I can't explain this - if you can you should believe this answer much more).
'egg' in reverse letter order is 'gge'.
'hod' placed around 'gge' is 'HOGGED'.
Can you help me to learn more?
(Another definition for hogged that I've seen is " Took more than fair share, the pig".)