New version of map, I grant, reveals bird (9)
I believe the answer is:
ptarmigan
'bird' is the definition.
(ptarmigan is a kind of bird)
'new version of map i grant' is the wordplay.
'new version of' indicates anagramming the letters.
'map'+'i'+'grant'='mapigrant'
'mapigrant' is an anagram of 'PTARMIGAN'.
'reveals' is the link.
(Other definitions for ptarmigan that I've seen before include "One flying" , "turns white in winter" , "Arctic grouse" , "Highland game bird -- giant ramp (anag)" , "Game bird living the high life" .)