Let hope be unconfined for the moon goddess (6)

I believe the answer is:

phoebe

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

'the moon goddess' is the definition.
(I've seen this before)

'let hope be unconfined' is the wordplay.
'hope be' can be anagrammed to 'PHOEBE'.
Though, I'm not clear how this is indicated.

'for' is the link.

Can you help me to learn more?

(Other definitions for phoebe that I've seen before include "girl" , "flycatcher" , "Old poetic name for moon, and satellite of Saturn" , "Apollo's sister Artemis, the moon goddess" , "Daughter of Uranus and Gaia" .)

I've seen this clue in The Globe and Mail.

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