Male bird caught by kangaroos, terrified! (7)
I believe the answer is:
rooster
'male bird' is the definition.
'caught by kangaroos terrified' is the wordplay.
'caught by' says the answer is hidden in the clue.
'ROOSTER' is hidden in the letters of 'kangaroos terrified'.
(Other definitions for rooster that I've seen before include "American cockerel" , "Chanticleer" , "Farmyard bird" , "Adult male domestic fowl" , "So retro (anag.)" .)