Flies disturbed sleep after turning over for quick stretch? (8)

I believe the answer is:

lifespan

'quick stretch?' is the definition.

'flies disturbed sleep after turning over' is the wordplay.
'disturbed' indicates anagramming the letters.
'sleep' becomes 'nap' (I've seen this before).
'after turning over' says the letters should be written in reverse.
'nap' back-to-front is 'pan'.
'flies' with letters rearranged gives 'lifes'.
'lifes'+'pan'='LIFESPAN'

'for' is the link.

(Another definition for lifespan that I've seen is " This may be curtailed".)

I've seen this clue in The Times.

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