Travelled by horse to old American ballet (5)
I believe the answer is:
rodeo
'american ballet' is the definition.
The answer and definition can be both acts as well as being singular nouns.
Maybe there's an association between them I don't understand?
'travelled by horse to old' is the wordplay.
'travelled by horse' becomes 'rode'.
'to old' becomes 'o' (abbreviation).
'rode'+'o'='RODEO'
Can you help me to learn more?
(Other definitions for rodeo that I've seen before include "Exhibition of cowboy skills" , "Cattle round-up" , "Cowboy competition, riding horses and bulls" , "skilful exhibition?" , "show with mounting excitement" .)