Went up to get barrister beer, heartening judge (6)
I believe the answer is:
scaled
'went up' is the definition.
(scaling is a kind of going up)
'barrister beer heartening judge' is the wordplay.
I cannot really see how this works, but
'beer' could be 'ale' (type of beer) and 'ale' is found in the answer.
This explanation may well be incorrect...
'to get' is the link.
Can you help me to learn more?
(Other definitions for scaled that I've seen before include "Climbed or removed fish-flakes" , "Cleaned fish" , "Climbed - peeled off" , "like fish or reptile" , "Climbed; flaked off" .)