Congregation of stars with a capital attorney (9)

I believe the answer is:

andromeda

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'congregation of stars' is the definition.
'andromeda' can be an answer for 'stars' (Andromeda is a constellation). I am not certain of the 'congregation of' bit.

'with a capital attorney' is the wordplay.
'with' becomes 'and'.
'a capital' becomes 'Rome' (capital of Italy).
'attorney' becomes 'DA' (District Attorney).
'and'+'rome'+'da'='ANDROMEDA'

Can you help me to learn more?

(Other definitions for andromeda that I've seen before include "group of stars" , "woman rescued by Perseus" , "plant" , "Pattern of stars" , "Damsel in distress" .)

I've seen this clue in The Independent.

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