Crashed flier long imprisoned (5)

I believe the answer is:

lifer

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'crashed flier long imprisoned' is the definition.
I can't judge whether this defines the answer.

'crashed flier' is the wordplay.
'crashed' is an anagram indicator.
'flier' is an anagram of 'LIFER'.

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(Other definitions for lifer that I've seen before include "Prisoner serving the maximum term" , "Convicted murderer, say" , "One given lots of porridge" , "One with maximum sentence" , "Serious criminal" .)

I've seen this clue in the Evening Standard.

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