Bowie number succeeded in the future, 'Tom' having faded out? (6)
I believe the answer is:
sorrow
'out?' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how they can define each other.
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for sorrow that I've seen before include "Lamenting" , "Deep distress" , "'Distress, sadness (6)'" , "Deep sadness" , "Expression of grief" .)