My ceramist goes to pot that's lopsided (10)
I believe the answer is:
asymmetric
'lopsided' is the definition.
(similar in meaning)
'my ceramist goes to pot' is the wordplay.
'goes to pot' indicates an anagram.
'my'+'ceramist'='myceramist'
'myceramist' with letters rearranged gives 'ASYMMETRIC'.
'that's' is the link.
(Other definitions for asymmetric that I've seen before include "kind of bars frequented by gymnasts" , "Not regularly shaped" , "Unbalanced" , "crooked" , "Lopsided" .)