Wake up next to grand bird (6)
I believe the answer is:
grouse
'bird' is the definition.
(grouse is a kind of bird)
'wake up next to grand' is the wordplay.
'wake up' becomes 'rouse' (I've seen this before).
'next to' says to put letters next to each other.
'grand' becomes 'g' ('G' can be a synonym of 'grand').
'rouse' after 'g' is 'GROUSE'.
(Other definitions for grouse that I've seen before include "Game bird - beef" , "Complain like game bird" , "Bird - complaint" , "excellent in New Zealand" , "No shooting it before 12 August" .)