Drink nothing turning up for work (4)
I believe the answer is:
opus
'for work' is the definition.
(an opus is an artistic work)
'drink nothing turning up' is the wordplay.
'drink' becomes 'sup' (to sup is to drink).
'nothing' becomes 'O' (O resembles 0).
'turning up' is a reversal indicator.
'sup'+'o'='supo'
'supo' reversed gives 'OPUS'.
(Other definitions for opus that I've seen before include "Creative work, eg in writing, art or music" , "Work or composition, usually musical" , "Piece of music (with number)" , "Musical composition in the soup" , "A Latin work" .)