Really rail at (6)
I believe the answer is:
assail
(Other definitions for assail that I've seen before include "Maybe mug" , "Sudden attack" , "Launch an attack" , "Attack, lash out" , "Beset" .)
I believe the answer is:
assail
(Other definitions for assail that I've seen before include "Maybe mug" , "Sudden attack" , "Launch an attack" , "Attack, lash out" , "Beset" .)