Land bird (6)
I believe the answer is:
turkey
I believe this clue is a double definition.
'land' is the first definition.
(Turkey is an example)
'bird' is the second definition.
(turkey is a kind of bird)
(Other definitions for turkey that I've seen before include "A lemon" , "which is found in more than one continent" , "miserable failure" , "See 12" , "Traditional Christmas food" .)