Great restaurant where guardian takes some time (7,3)

I believe the answer is:

chapter one

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'great restaurant' is the definition.
I don't know anything about this answer so I can't judge whether it can be defined by this definition.

'guardian takes some time' is the wordplay.
'guardian takes' becomes 'chapter' (I am not sure about this - if you are sure you should believe this answer much more).
'some time' becomes 'one' (I've seen this before).
'chapter'+'one'='CHAPTER ONE'

'where' acts as a link.

Can you help me to learn more?

I've seen this clue in The Irish Times.

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