Crossword Genius

In Paris, I have left holiday escape at the Bastille? (9)

Ross

I believe the answer is:

jailbreak

I'm a little stuck... Click here to teach me more about this clue!

'escape at the bastille?' is the definition.
I can't tell whether this defines the answer.

'in paris i have left holiday' is the wordplay.
'in paris' becomes 'ja' (I can't justify this - if you can you should believe this answer much more).
'have' says to put letters next to each other.
'left' becomes 'L' (common abbreviation).
'holiday' becomes 'break' (break can mean a holiday or time off).
'ja'+'i'+'l'+'break'='JAILBREAK'

Can you help me to learn more?

I've seen this clue in The Telegraph.
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