Large vehicle upending dirt onto fresh scrap (6,5)
I believe the answer is:
dumper truck
'large vehicle' is the definition.
I don't know anything about this answer so I can't judge whether this works.
'upending dirt onto fresh scrap' is the wordplay.
'upending dirt' becomes 'dum' (I can't explain this - if you can you should believe this answer much more).
'onto' means one lot of letters go next to another.
'fresh' becomes 'pert' (I've seen this before).
'scrap' becomes 'ruck' (both can mean a fight).
'dum'+'pert'+'ruck'='DUMPER TRUCK'
Can you help me to learn more?
(Other definitions for dumper truck that I've seen before include "Tipper lorry" , "Vehicle with tilting body" , "Vehicle used for transporting loose material" , "Tilting wagon" .)