Croaky on the radio and on local television in the trailer for Black Beauty
I believe the answer is:
horsebox
'the trailer for black beauty' is the definition.
I can't judge whether this defines the answer.
'croaky on the radio and on local television' is the wordplay.
'croaky' becomes 'hoarse' (I've seen this before).
'on the radio' indicates a 'sounds like' (homophone) clue.
'and' is a charade indicator (letters next to each other).
'on local television' becomes 'box' (I can't justify this - if you can you should give a lot more credence to this answer).
'hoarse' sounds like 'horse'.
'horse'+'box'='HORSEBOX'
'in' is the link.
Can you help me to learn more?
(Other definitions for horsebox that I've seen before include "Equine transporter" , "road trailer" , "Equine conveyance" , "Animal transporter" , "It takes animals to the races" .)