Vulcan's demise unexpectedly good news? (7)
I believe the answer is:
godsend
'unexpectedly good news?' is the definition.
Although both the answer and definition are singular nouns, I don't understand how one could define the other.
'vulcan's demise' is the wordplay.
'vulcan' becomes 'gods' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'demise' becomes 'end' (I've seen this in another clue).
'gods'+'end'='GODSEND'
Can you help me to learn more?
(Other definitions for godsend that I've seen before include "A piece of unexpected good fortune - despatched from above?" , "The relief" , "Stroke of luck" , "'Manna from heaven'" , "Unexpected help" .)