King or queen, say, cutting fruit, one might eat it all (8)
I believe the answer is:
'one might eat it all' is the definition.
(a gourmand is someone who loves food)
'king or queen say cutting fruit' is the wordplay.
'king or queen say' becomes 'man' (I can't explain this - if you can you should give a lot more credence to this answer).
'cutting' means one lot of letters goes inside another (some letters cut their way into a word).
'fruit' becomes 'gourd' (gourd is a kind of fruit).
'man' put inside 'gourd' is 'GOURMAND'.
Can you help me to learn more?
(Other definitions for gourmand that I've seen before include "one putting loads away?" , "One who enjoys eating" , "Excessive eater and drinker" , "Foodie" , "Food buff" .)