Stroke of luck (8)
'stroke of luck' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for fluke that I've seen before include "Lucky shot" , "Accidental success" , "flounder" , "Chance happening" , "Parasitic flatworm" .)
'stroke of luck' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for windfall that I've seen before include "Godsend" , "Unexpected gain" , "unexpected blessing" , "bonanza" , "Sudden and unexpected piece of good fortune" .)