Chauffeur runs inside sleazy bar (5)
I believe the answer is:
drive
'chauffeur' is the definition.
(I've seen this in another clue)
'runs inside sleazy bar' is the wordplay.
'runs' becomes 'r' (cricket abbreviation).
'inside' indicates putting letters inside.
'sleazy bar' becomes 'dive' (I've seen this in another clue).
'r' put inside 'dive' is 'DRIVE'.
(Other definitions for drive that I've seen before include "Hit golf ball from tee" , "required for excursion" , "Urge; approach to house" , "spin" , "Impel; house approach" .)