10 across
Official
Aussie
pick-up
counter
(6)
Official Aussie pick-up counter (6)
hints
0
checks
0
hints
The definition is at the end of the clue.
How the clue works
Look at counter at the end — that's your definition, meaning to rebut or contradict. REF gives you "Official" (as in referee), and UTE is that Aussie pick-up truck, so you just stick them together.