Spurs wanting a final point getting a stroke of luck (7)
I believe the answer is:
godsend
'a stroke of luck' is the definition.
(I've seen this before)
'spurs wanting a final point' is the wordplay.
'spurs' becomes 'goads' ('goad' can be a synonym of 'spur').
'wanting' is a deletion indicator (to want something can mean to lack it or need it).
'final' means one lot of letters go next to another.
'point' becomes 'end' (end is a kind of point**).
'goads' with 'a' taken out is 'gods'.
'gods'+'end'='GODSEND'
'getting' acts as a link.
(Other definitions for godsend that I've seen before include "A piece of unexpected good fortune - despatched from above?" , "Welcome surprise" , "Very opportune thing" , "Something unexpected but welcome" , "Boon - blessing" .)