Group of events the old can put off (9)
I believe the answer is:
decathlon
'group of events' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how one could define the other.
'the old can put off' is the wordplay.
'put off' indicates anagramming the letters.
'the'+'old'+'can'='theoldcan'
'theoldcan' anagrammed gives 'DECATHLON'.
Can you help me to learn more?
(Other definitions for decathlon that I've seen before include "Event, or events" , "Olympic athletics event" , "Athletic contest with ten different events" , "sporting contest" , "Competition comprising ten events" .)