Lorry briefly going round cold northern region (6)
I believe the answer is:
arctic
'northern region' is the definition.
(I've seen this in another clue)
'lorry briefly going round cold' is the wordplay.
I cannot really understand how this works, but
'cold' could be 'c' (eg on taps) and 'c' is found within the answer.
'lorry' could be 'artic' (articulated lorry is a semi-trailer truck) and 'artic' is located in the leftover letters.
No letters remain.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for arctic that I've seen before include "Far-northern zone" , "It's cold at the top" , "Northern ocean" , "icy conditions" , "Bitter" .)