Work the bar (4)
I believe the answer is:
tend
'work the bar' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for tend that I've seen before include "Have inclination or care for" , "Look after (someone)" , "Look after, or take certain direction" , "Be predisposed or inclined" , "Look after - there's a dent in it" .)