Devastating (7)
'devastating' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for ruinous that I've seen before include "causing harm?" , "Broken down" , "Disastrous, destructive" , "Catastrophic" , "Destructive and causing downfall" .)
'devastating' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Another definition for calamitous that I've seen is " Catastrophic".)
'devastating' is the definition.
('ravage' can be a synonym of 'devastate')
This is the entire clue.
(Another definition for ravaging that I've seen is " causing severe damage".)