Crossword Genius

King alone starts the day (7)

Ross

I believe the answer is:

solomon

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

'king' is the definition.
(I know that Solomon is a king)

'alone starts the day' is the wordplay.
I cannot quite understand how this works, but
'alone' could be 'solo' (as in a musical solo) and 'solo' is found in the answer.
'day' could be 'mon' (abbreviation for Monday) and 'mon' is located in the answer.
No letters remain.
This may be the basis of the clue (or it may be nonsense).

Can you help me to learn more?

(Other definitions for solomon that I've seen before include "Biblical wise king" , "Very wise ruler" , "King of Egypt famous for wisdom and magnificence" , "Sage" , "OT king" .)

I've seen this clue in The Globe and Mail.
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