Roll cigars at the back with habit (4)
I believe the answer is:
sway
'roll' is the definition.
(thesaurus)
'cigars at the back with habit' is the wordplay.
'at the back' says to take the final letters.
'with' is a charade indicator (letters next to each other).
'habit' becomes 'way' (habit or way of doing something).
The last letter of 'cigars' is 's'.
's'+'way'='SWAY'
(Other definitions for sway that I've seen before include "Move gently" , "Move back and forth" , "Rock, stagger" , "Influence; dominance" , "Control" .)