Misguidedly covet a bird (6)
I believe the answer is:
avocet
'bird' is the definition.
(avocet is a kind of bird)
'misguidedly covet a' is the wordplay.
'misguidedly' is an anagram indicator.
'covet'+'a'='coveta'
'coveta' is an anagram of 'AVOCET'.
(Other definitions for avocet that I've seen before include "Long-legged wader" , "RSPB emblem" , "Shorebird - octave (anag)" , "Wading bird with long bill" , "ornithological specimen" .)