Plant publication about English duck (7)
I believe the answer is:
oregano
'plant' is the definition.
(oregano is a kind of plant)
'publication about english duck' is the wordplay.
'publication' becomes 'organ' (organ is a kind of publication).
'about' indicates putting letters inside.
'english' becomes 'E' (abbreviation).
'duck' becomes 'o' (resembles zero - 'duck' in cricket).
'organ' going around 'e' is 'oregan'.
'oregan'+'o'='OREGANO'
(Other definitions for oregano that I've seen before include "Mediterranean herb" , "that's aromatic" , "Aromatic culinary herb" , "Kitchen herb" , "aromatic plant" .)