Listened to the sound of the cattle (5)
I believe the answer is:
heard
'listened to' is the definition.
(I've seen this in another clue)
'sound of the cattle' is the wordplay.
'sound of' shows a homophone (sound like).
'the cattle' becomes 'herd' (I've seen this in other clues).
'herd' sounds like 'HEARD'.
'the' acts as a link.
(Other definitions for heard that I've seen before include "Traditional children shouldn't be" , "Listened to (sound)" , "Detected aurally" , "Caught - picked up" , "Examined" .)