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 increase)

'a nutmeg's nuttiness?' is the wordplay.
'a nutmeg' can be anagrammed to 'AUGMENT'.
Though, I'm 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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