Jump jet regularly starts to nosedive during flip (2-3)

I believe the answer is:

up-end

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'flip' is the definition.
I know nothing about this answer so I can't judge whether this works.

'jump jet regularly starts to nosedive during' is the wordplay.
'regularly' indicates alternate letters (regularly take one letter, leave next etc.).
'starts to' indicates taking the first letters.
The initial letters of 'nosedive during' is 'nd'.
'jump'+'jet'='jumpjet'
The alternating letters of 'jumpjet' are 'upe'.
'upe'+'nd'='UP-END'

Can you help me to learn more?

(Other definitions for up-end that I've seen before include "Have unsettling effect on" , "Turn on its head" , "Put into disarray" , "Turn from top to bottom" .)

I've seen this clue in The Independent.

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