Wee drink ahead of a play (5)
I believe the answer is:
drama
'play' is the definition.
('drama' can be a synonym of 'play')
'wee drink ahead of a' is the wordplay.
'wee drink' becomes 'dram' (I've seen this before).
'ahead of' says to put letters next to each other (I've seen this in other clues).
'dram'+'a'='DRAMA'
(Other definitions for drama that I've seen before include "Play, emotional series of events" , "Theatrical piece" , "Highly emotional episode" , "Work to be performed by actors" , "Play - crisis" .)