Rush to tread on notes (8)
I believe the answer is:
stampede
'rush' is the definition.
(I've seen this before)
'tread on notes' is the wordplay.
I cannot really see how this works, but
'notes' could be 'ed' and 'ed' is found within the answer.
This explanation may well be incorrect...
'to' is the link.
Can you help me to learn more?
(Other definitions for stampede that I've seen before include "Rampage" , "Headlong rush of animals" , "Wild headlong rush" , "Headlong rush of a group in panic" , "Crazy pets made a sudden rush" .)