Maverick adoring Zeus or Freyr? (4,3)

I believe the answer is:

rain god

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

'zeus or freyr?' is the definition.
I don't know anything about this answer so I cannot tell whether it can be defined by this definition.

'maverick adoring' is the wordplay.
'maverick' indicates an anagram.
'adoring' anagrammed gives 'RAIN GOD'.

Can you help me to learn more?

(Other definitions for rain god that I've seen before include "object of worship" , "Jupiter Pluvius, for example" .)

I've seen this clue in The Guardian.

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