Sadness at Stamford Bridge? (5)
I believe the answer is:
blues
'sadness' is the definition.
(I've seen this before)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for blues that I've seen before include "Melancholy music of Black American origin" , "State of depression" , "Gloom" , "US music style" , "Lady Sings the - - (film)" .)