Crossword Genius

Remove money from girl with son inadequately dressed? (9)

Ross

I believe the answer is:

disinvest

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'remove money' is the definition.
(I've seen this before)

'girl with son inadequately dressed?' is the wordplay.
'girl' becomes 'di'.
'with' says to put letters next to each other.
'son' becomes 's' (genealogical abbreviation for son).
'inadequately dressed?' becomes 'invest' (I can't justify this - if you can you should believe this answer much more).
'di'+'s'+'invest'='DISINVEST'

'from' acts as a link.

Can you help me to learn more?

(Other definitions for disinvest that I've seen before include "Dispose of shares" , "Remove money" .)

I've seen this clue in The Times.
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