Bush in desert conceals animal (4)
I believe the answer is:
hind
'animal' is the definition.
(I've seen this before)
'bush in desert conceals' is the wordplay.
'conceals' says the answer is hidden in the clue.
'HIND' can be found hidden inside 'bush in desert'.
(Other definitions for hind that I've seen before include "Rear - female deer" , "Be much better than (someone)" , "A female deer, situated at the back?" , "Female red deer" , "Be in front of this farm-worker" .)