Miss Del or Cal, say, or maybe Mo? (5)

I believe the answer is:

state

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

'maybe mo?' is the definition.
(I know that Macau is a city-state)

I don't understand the remainder of the clue.

(Other definitions for state that I've seen before include "eg Maine" , "eg Iowa" , "See 18" , "For example, New York or Washington but not Boston or Philadelphia" , "Speak" .)

I've seen this clue in the Evening Standard.

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