Dessert wine staff for example should return (10)
I believe the answer is:
blancmange
'dessert' is the definition.
(blancmange is a kind of dessert)
'wine staff for example should return' is the wordplay.
'wine' becomes 'blanc' (French for 'white' ).
'staff' becomes 'man' (as in staffing or manning a particular place).
'for example' becomes 'eg' (short for 'exempli gratia', 'for example' in Latin).
'should return' says the letters should be written in reverse.
'eg' backwards is 'ge'.
'blanc'+'man'+'ge'='BLANCMANGE'
(Other definitions for blancmange that I've seen before include "Almond-flavoured jelly-like milk pudding" , "Dessert of flavoured milk stiffened with cornflower" , "Mouldy food" , "Pudding made with milk - ABC man, Glen (anag)" , "Jelly-like dessert" .)