Mobile yet static in Monaco for instance? (4-5)

I believe the answer is:

city-state

'monaco for instance?' is the definition.
(I know that Monaco is a city state)

'mobile yet static' is the wordplay.
'mobile' indicates anagramming the letters (mobile can mean moving).
'yet'+'static'='yetstatic'
'yetstatic' is an anagram of 'CITY-STATE'.

'in' is the link.

(Another definition for city-state that I've seen is " ancient Athens, say".)

I've seen this clue in The Times.

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