Running in a derby, sounded like an ass (6)
I believe the answer is:
brayed
'sounded like an ass' is the definition.
(I've seen this in another clue)
'running in a derby' is the wordplay.
'a derby' can be anagrammed to 'BRAYED'.
Though, I'm unsure how this is indicated.
Can you help me to learn more?
(Other definitions for brayed that I've seen before include "made a beastly noise" , "made nasty noise" , "made an ass-like sound" , "Made noise like donkey" , "Hee-hawed" .)