Beer weekend say? (3)
I believe the answer is:
keg
'beer' is the definition.
(I've seen this before)
'weekend say' is the wordplay.
'weekend' becomes 'k' (I've seen this in other clues).
'say' becomes 'eg' (both can mean 'for example').
'k'+'eg'='KEG'
(Other definitions for keg that I've seen before include "Barrel as for beer" , "What's found at King's Head" , "Small beer cask" , "Sort of beer" , "Small cask or barrel" .)