Write quickly — from France's capital (4,3)
I believe the answer is:
dash off
'write quickly' is the definition.
(synonyms)
'from france's capital' is the wordplay.
I cannot quite see how this works, but
'from' could be 'off' (eg someone might be from or 'off' a TV show) and 'off' is present in the answer.
The remaining letters 'dash' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Another definition for dash off that I've seen is " Rush away".)