Wrestler from Greece right to eat healthy food (8)

I believe the answer is:

grappler

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'wrestler' is the definition.
(I know that wrestler can be written as grappler)

'greece right to eat healthy food' is the wordplay.
'greece' becomes 'Gr' (abbreviation).
'right' becomes 'r' (common abbreviation).
'to eat' indicates putting letters inside.
'healthy food' becomes 'apple' (apple is a kind of food. I am not sure about the 'healthy' bit.).
'gr'+'r'='grr'
'grr' going around 'apple' is 'GRAPPLER'.

'from' acts as a link.

Can you help me to learn more?

I've seen this clue in The Guardian.

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