Throaty sound on apple heard, a bird (10)
I believe the answer is:
kookaburra
'bird' is the definition.
(kookaburra is a kind of bird)
'throaty sound on apple heard a' is the wordplay.
I cannot really understand how this works, but
'sound' could be 'burr' (I have seen 'Rough sound' mean 'burr' so perhaps 'sound' could also mean 'burr') and 'burr' is found in the answer.
'a' is within the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for kookaburra that I've seen before include "winger in Australia" , "Australian bird" , "Large kingfisher (aka laughing jackass)" , "Strident Australian" , "Australian kingfisher" .)