Fate is strange, providing such fun (6)
I believe the answer is:
fiesta
'such fun' is the definition.
The answer and definition can be both acts as well as being singular nouns.
Maybe they are linked in a way I don't understand?
'fate is strange' is the wordplay.
'strange' indicates anagramming the letters.
'fate'+'is'='fateis'
'fateis' is an anagram of 'FIESTA'.
'providing' is the link.
Can you help me to learn more?
(Other definitions for fiesta that I've seen before include "religious celebration" , "(Spanish) religious festival" , "Spanish holiday" , "celebration abroad" , "Religious festival in Hispanic communities" .)