A few wanting nothing with duck (4)
I believe the answer is:
smew
'duck' is the definition.
(smew is a kind of duck)
'a few wanting nothing with' is the wordplay.
'a few wanting nothing' becomes 'sme' (I can't justify this - if you can you should give a lot more credence to this answer).
'with' becomes 'w' (short for with).
'sme'+'w'='SMEW'
Can you help me to learn more?
(Other definitions for smew that I've seen before include "Diver" , "Species of merganser" , "Sea duck" , "Small merganser" , "Bird" .)