Names withheld, and no fuss (3)
I believe the answer is:
ado
'fuss' is the definition.
(synonyms)
'names withheld and no' is the wordplay.
I cannot really see how this works, but
'no' could be 'o' (resembles 0 - 'no' can mean 'zero') and 'o' is present in the answer.
The remaining letters 'ad' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for ado that I've seen before include "stew is provided" , "Busy activity, trouble" , "flapping" , "puff ball!" , "stir" .)