Not normally a wonderful friend? (9)

I believe the answer is:

magically

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

'not normally a' is the definition.
I can't tell whether this defines the answer.

'wonderful friend?' is the wordplay.
'wonderful' becomes 'magic' (I've seen this before).
'friend?' becomes 'ally' ('ally' can be a synonym of 'friend').
'magic'+'ally'='MAGICALLY'

Can you help me to learn more?

(Other definitions for magically that I've seen before include "Employing hocus-pocus" , "In enchanting manner" .)

I've seen this clue in the Evening Standard.

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