Extract the essential bits of stomach (3)
I believe the answer is:
gut
This clue could be a double definition.
'extract the essential bits' is the first definition.
Although both the answer and definition are singular nouns, I don't see how one could define the other.
'stomach' is the second definition.
(I've seen this before)
'of' acts as a link.
Can you help me to learn more?
(Other definitions for gut that I've seen before include "Remove innards from" , "Rip out (a place's) interior" , "good German" , "Part of the digestive system" , "Evidence of heavy drinking" .)