Bird getting on with the cheese (7)
I believe the answer is:
stilton
'the cheese' is the definition.
(Stilton is an example)
'bird getting on' is the wordplay.
'bird' becomes 'stilt' (stilt is a kind of bird**).
'getting' means one lot of letters go next to another.
'stilt'+'on'='STILTON'
'with' is the link.
(Other definitions for stilton that I've seen before include "Dairy product" , "Rich, blue-veined cheese" , "Blue 4 across" , "Strong Eng. cheese" , "English blue cheese" .)