Spice Girl avoids booze, chiefly to vocalise with relevance (9)

I believe the answer is:

germanely

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

'avoids booze chiefly to vocalise with relevance' is the definition.
I can't tell whether this definition defines the answer.

'spice girl' is the wordplay.
I cannot quite understand how this works, but
'girl' could be 'erma' and 'erma' is located in the answer.
This may be the basis of the clue (or it may be nonsense).

Can you help me to learn more?

I've seen this clue in the Sydney Morning Herald.

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