Drink freely and noisily (7)
I believe the answer is:
carouse
'drink freely and noisily' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for carouse that I've seen before include "Engage in boisterous, drunken merry-making" , "Party noisily" , "Roister" , "Take a course to party wildly" , "Drink freely and noisily" .)