Up in jungle targeting animal (5)
I believe the answer is:
ratel
'animal' is the definition.
(I've seen this before)
'up in jungle targeting' is the wordplay.
'up' says the letters should be written in reverse (in down clue: letters go upwards).
'in' indicates a hidden word.
'letar' can be found hidden inside 'jungle targeting'.
'letar' backwards is 'RATEL'.
(Other definitions for ratel that I've seen before include "Animal of Africa and India - alert (anag)" , "Badger-like animal" , "wild animal" , "Musteline mammal" , "One eats honey" .)