Crossword Genius

German emperor to look in the mirror? (4)

Ross

I believe the answer is:

otto

I'm a little stuck... Click here to teach me more about this clue!

'german emperor' is the definition.
(I've seen this in another clue)

'to look in the mirror?' is the wordplay.
I cannot really understand how this works, but
'to' is found in the answer.
'the' could be 't' (the is pronounced as a 't' sound in some dialects) and 't' is located in the answer.
A single letter 'o' remains which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).

Can you help me to learn more?

(Other definitions for otto that I've seen before include "- - Preminger (films)" , "Swiss perhaps" , "Palindromic man's name" , "Ger. name (palindrome)" , "Four-stroke cycle -- palindromic name" .)

I've seen this clue in the Sydney Morning Herald.
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