Present in trees to attract animal (5)
I believe the answer is:
stoat
'animal' is the definition.
(type of rodent)
'present in trees to attract' is the wordplay.
'present in' indicates a hidden word.
'STOAT' is hidden within 'trees to attract'.
(Other definitions for stoat that I've seen before include "Weasel, ermine" , "Eating rabbit, he" , "Weasel-like mammal" , "furry animal" , "Member of the weasel family" .)