Sorrowful face after accepting unusual sexual style (6)
I believe the answer is:
dismal
'sorrowful' is the definition.
(thesaurus)
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for dismal that I've seen before include "down in the dumps" , "Depressing in character or appearance" , "'Depressing, grim (6)'" , "Showing gloom, dreary" , "pitifully bad" .)