Duck with bits of orange and spice (7)
I believe the answer is:
oregano
'spice' is the definition.
(I've seen this in another clue)
'duck with bits of orange' is the wordplay.
'duck' becomes 'o' (resembles zero - 'duck' in cricket).
'with' says to put letters next to each other.
'bits of orange' becomes 'regano' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'o'+'regano'='OREGANO'
'and' is the link.
(Other definitions for oregano that I've seen before include "Gear Ono up for the herb" , "Pizza herb" , "aromatic plant" , "Herb related to marjoram" , "Type of herb" .)