City star's beginning to decline, finally (4,2,3)

I believe the answer is:

last of all

'finally' is the definition.

'city star's beginning to decline' is the wordplay.
'city' becomes 'la' (Los Angeles).
'beginning' indicates taking the first letters.
'decline' becomes 'fall' (synonyms).
The first letter of 'stars' is 's'.
'la'+'s'+'to'+'fall'='LAST OF ALL'

I've seen this clue in the Independent.

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