Loving to all (2,4)

I believe the answer is:

in toto

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'all' is the definition.
(thesaurus)

'loving to' is the wordplay.
'loving' becomes 'into' (I can't justify this - if you can you should give a lot more credence to this answer).
'into'+'to'='IN TOTO'

Can you help me to learn more?

(Other definitions for in toto that I've seen before include "Tranquillity" , "All told" , "Wholly" , "Altogether, completely" , "Completely - entirely (Latin)" .)

I've seen this clue in The Telegraph.

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