Bird found in butcher's, some say (6)
I believe the answer is:
gander
I believe this is a double definition.
'bird' is the first definition.
(gander is a kind of bird)
'butcher's some say' is the second definition.
('butcher's' and 'gander' can both mean a look)
'found in' acts as a link.
(Other definitions for gander that I've seen before include "Looking at something - ranged (anag)" , "Glimpse" , "Male goose; look (colloq.)" , "Ranged over the bird" , "'What's sauce for the goose is sauce for the . . . . . .'" .)