Launch escapade in flier (7)

I believe the answer is:

skylark

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'flier' is the definition.
(skylark is a kind of birdanimal)

'launch escapade' is the wordplay.
'launch' becomes 'sky' (I am not sure about this - if you are sure you should believe this answer much more).
'escapade' becomes 'lark' (synonyms).
'sky'+'lark'='SKYLARK'

'in' is the link.

Can you help me to learn more?

(Other definitions for skylark that I've seen before include "Shelley's blithe Spirit" , "Hovering singer" , "Ode to a ... (Shelley)" , "High-flying songbird" , "Passerine bird" .)

I've seen this clue in The Times.

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