Land alone prepared for absolutely everyone (3,3,3)

I believe the answer is:

one and all

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'everyone' is the definition.
(thesaurus)

'land alone prepared' is the wordplay.
'prepared' indicates anagramming the letters.
'land'+'alone'='landalone'
'landalone' anagrammed gives 'ONE AND ALL'.

'for absolutely' acts as a link.
This may not be correct. Some or all of it may belong to another bit of the clue.

Can you help me to learn more?

(Other definitions for one and all that I've seen before include "Absolutely everybody" , "Everybody without exception" , "Everyman" .)

I've seen this clue in The Times.

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