Increase a nutmeg's nuttiness? (7)

I believe the answer is:

augment

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

'increase' is the definition.
(I know that augment is a more specific form of the action increase)

'a nutmeg's nuttiness?' is the wordplay.
'a nutmeg' anagrams to 'AUGMENT'.
Though, I am not clear how the anagram is indicated.

Can you help me to learn more?

(Other definitions for augment that I've seen before include "Add to, increase" , "Make greater in size, number, etc." , "Supplement" , "Increase number of" , "Expand" .)

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