It's A Magical World that can't be put down (9)

I believe the answer is:

neverland

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'it's a magical world that can't' is the definition.
I know nothing about this answer so I can't judge whether this works.

'put down' is the wordplay.
'put' becomes 'never' (I can't explain this - if you can you should believe this answer much more).
'down' becomes 'land' (synonyms).
'never'+'land'='NEVERLAND'

'be' is the link.

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