Crossword Genius

One's visitors take flight (9,6)

Ross

I believe the answer is:

departure lounge

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'flight' is the definition.
I know nothing about this answer so I can't tell whether it can be defined by this definition.

'one's visitors take' is the wordplay.
I cannot quite understand how this works, but
'take' could be 'r' (abbreviation for 'recipe', Latin for 'take') and 'r' is present in the answer.
'one' could be 'un' (northern English dialect form of 'one') and 'un' is found in the answer.
This explanation may well be incorrect...

Can you help me to learn more?

(Another definition for departure lounge that I've seen is " whence one heads heavenwards?".)

I've seen this clue in The Daily Express.
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