Flier from West Ealing (4)
I believe the answer is:
teal
'flier' is the definition.
(teal is a kind of birdanimal)
'from west ealing' is the wordplay.
'from' says the answer is hidden in the clue.
'TEAL' is hidden in the letters of 'west ealing'.
(Other definitions for teal that I've seen before include "Strange tale of a duck" , "Type of duck" , "Small river duck" , "Species of duck" , "Variety of small ducks" .)