Mixes up drink for fundraising event (6,4)
I believe the answer is:
jumble sale
'event' is the definition.
(I have seen 'parish event' mean 'jumble sale' so perhaps 'event' could also mean 'jumble sale')
'mixes up drink for fundraising' is the wordplay.
I cannot really see how this works, but
'drink' could be 'ale' (type of beer) and 'ale' is present in the answer.
'mixes up' could be 'jumbles' ('jumble' can be a synonym of 'mix up') and 'jumbles' is found in the answer.
This accounts for all the letters.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for jumble sale that I've seen before include "Money-raising event disposing of miscellany" , "Market for donated articles" , "Charity event where second-hand goods are bought" , "Fund-raising event less common in affluent society" , "Event at which discarded items are sold on" .)