List includes duck, domesticated bird (7)
I believe the answer is:
rooster
'domesticated bird' is the definition.
'rooster' can be an answer for 'bird' (rooster is a kind of bird). I am not sure about the 'domesticated' bit.
'list includes duck' is the wordplay.
'list' becomes 'roster' (a roster is a list or register).
'includes' means one lot of letters goes inside another.
'duck' becomes 'o' (resembles zero - 'duck' in cricket).
'roster' going around 'o' is 'ROOSTER'.
Can you help me to learn more?
(Other definitions for rooster that I've seen before include "Domestic cock" , "male with comb" , "Early-morning caller" , "Cockerel (mainly US)" , "Farmyard cock" .)