Serve bass in a dressing, causing sharpness (12)
I believe the answer is:
abrasiveness
'sharpness' is the definition.
The answer and definition can be both human attributes as well as being singular nouns.
Maybe you can see a link between them that I don't see?
'serve bass in a dressing' is the wordplay.
'serve bass in a' anagrams to 'ABRASIVENESS'.
However, I am not sure how this is indicated.
'causing' is the link.
Can you help me to learn more?
(Other definitions for abrasiveness that I've seen before include "Harsh manner" , "feeling rough" .)