Bar is raised for wild enjoyment (5)
I believe the answer is:
revel
'wild enjoyment' is the definition.
The answer and definition can be both acts as well as being singular nouns.
Perhaps there's an association between them I don't understand?
'bar is raised' is the wordplay.
'bar' becomes 'lever' (lever is a kind of bar).
'is raised' says the letters should be written in reverse (going up in a down clue).
'lever' reversed gives 'REVEL'.
'for' is the link.
Can you help me to learn more?
(Other definitions for revel that I've seen before include "Have noisy fun" , "Make merry; luxuriate (in)" , "Rejoice" , "Take part in lively and noisy festivities" , "Spree" .)