Left work initially with a Parisienne - very auspicious! (9)
I believe the answer is:
opportune
'auspicious' is the definition.
(I've seen this in another clue)
'left work initially with a parisienne' is the wordplay.
'left' is a reversal indicator.
'work initially' becomes 'troppo' (I can't justify this - if you can you should give a lot more credence to this answer).
'with' is a charade indicator (letters next to each other).
'a parisienne' becomes 'une' ('a' in French).
'troppo' written backwards gives 'opport'.
'opport'+'une'='OPPORTUNE'
'very' is the link.
Can you help me to learn more?
(Other definitions for opportune that I've seen before include "Timely, advantageous moment" , "Timely and convenient" , "Especially convenient" , "fit" , "Well-timed" .)