Watch to see who’s frightening the animals (6)
I believe the answer is:
hunter
'watch' is the definition.
(type of watch)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for hunter that I've seen before include "''Home is the sailor, home from the sea /And the ...home from the hill'' (R.L Stevenson)" , "one chasing the game?" , "One after quarry" , "Nimrod, for instance" , "See 13" .)