One fond of food, gut more developed (7)

I believe the answer is:

gourmet

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'one fond of food' is the definition.
Although both the answer and definition are singular nouns, I can't see how one could define the other.

'gut more developed' is the wordplay.
'developed' is an anagram indicator.
'gut'+'more'='gutmore'
'gutmore' with letters rearranged gives 'GOURMET'.

Can you help me to learn more?

(Other definitions for gourmet that I've seen before include "One devoted to the refined enjoyment of food and drink" , "Knowledgeable eater" , "One has a passion for fine food and wine" , "bon viveur" , "Bon vivant" .)

I've seen this clue in The Sun.

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