Kiss husband in bar (5)
I believe the answer is:
shave
'kiss' is the definition.
(thesaurus)
'husband in bar' is the wordplay.
'husband' becomes 'h'.
'in' indicates putting letters inside.
'bar' becomes 'save' (save is a kind of bar**).
'h' placed within 'save' is 'SHAVE'.
(Other definitions for shave that I've seen before include "Use a razor" , "Remove facial hair" , "Remove unwanted hair" , "Shear closely" , "Knock off" .)