Predicts sound of what cuckoo clock has (8)
I believe the answer is:
foresees
'predicts' is the definition.
(I've seen this in another clue)
'sound of what cuckoo clock has' is the wordplay.
I cannot quite see how this works, but
'of' could be 'o' and 'o' is found within the answer.
'clock' could be 'see' (clock can mean to see or realise) and 'see' is found within the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Another definition for foresees that I've seen is " Anticipates".)