Crossword Genius

Entirely fashionable Wizard of Oz character (2,4)

Ross

I believe the answer is:

in toto

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

'fashionable wizard of oz character' is the wordplay.
'fashionable' becomes 'in' (similar in meaning).
'wizard of oz character' becomes 'toto' (I can't justify this - if you can you should give a lot more credence to this answer).
'in'+'toto'='IN TOTO'

Can you help me to learn more?

(Other definitions for in toto that I've seen before include "All told" , "Completely - entirely (Latin)" , "In entirety" , "Altogether, completely" , "As a whole (Latin)" .)

I've seen this clue in The Telegraph.
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