Crossword Genius

A few wanting nothing with duck (4)

Ross

I believe the answer is:

smew

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'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" .)

I've seen this clue in The Telegraph.
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