Very strong pimento not digested (10)

I believe the answer is:

omnipotent

I'm a little stuck... Click here to teach me more about this clue!

'very strong' is the definition.
(I've seen this in another clue)

'pimento not digested' is the wordplay.
'pimento not' anagrams to 'OMNIPOTENT'.
However, I am unsure how the anagram is indicated.

Can you help me to learn more?

(Other definitions for omnipotent that I've seen before include "All-powerful" , "Almighty" .)

I've seen this clue in The Everyman puzzle in The Observer.

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