Raised carving of fish said to provide some consolation (3-6)
I believe the answer is:
bas-relief
'raised carving' is the definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Perhaps you can see an association between them that I don't see?
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for bas-relief that I've seen before include "Sculpture with slightly raised figures" , "As febrile as sculpture with figures slightly projecting from background" , "Sculpture with carvings projecting slightly from background" .)