Gut originally enormous, suggestive of eating good food (11)
I believe the answer is:
gastronomic
'eating good food' is the definition.
'gastronomic' can be an answer for 'eating' (thesaurus). I'm unsure of the 'good food' bit.
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for gastronomic that I've seen before include "Relating to fine food" , "Relating to the art of good food" , "epicurean" , "Relating to good eating" , "Relating to fine eating" .)