Something saucy, soppy but not very quiet (3)
I believe the answer is:
soy
'something saucy' is the definition.
I can't tell whether this defines the answer.
'soppy but not very quiet' is the wordplay.
'but not' indicates named letters should be taken away.
'very quiet' becomes 'pp' (musical abbreviation for pianissimo).
'soppy' with 'pp' taken away is 'SOY'.
Can you help me to learn more?
(Other definitions for soy that I've seen before include "Chinese sauce" , "Piquant eastern sauce" , "Oriental sauce" , "Sauce bean" , "Dark salty sauce" .)