Crossword Genius

Plane is noted deviating, then dropped (10)

Ross

I believe the answer is:

jettisoned

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

'dropped' is the definition.
The definition and answer can be both to do with contact as well as being past participle verbs.
Maybe there's a link between them I don't understand?

'plane is noted deviating' is the wordplay.
'plane' becomes 'jet' (jet plane).
'deviating' indicates anagramming the letters.
'is'+'noted'='isnoted'
'isnoted' anagrammed gives 'tisoned'.
'jet'+'tisoned'='JETTISONED'

'then' acts as a link.

Can you help me to learn more?

(Other definitions for jettisoned that I've seen before include "Thrown away" , "dumped" , "thrown out of plane" , "Threw away" , "Thrown overboard" .)

I've seen this clue in The Daily Express.
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