Madness metaphor (5)
I believe the answer is:
steam
(Other definitions for steam that I've seen before include "Vaporised water" , "Vapour from water at boiling point" , "Source of energy" , "Source of power" , "Watery vapour" .)
I believe the answer is:
steam
(Other definitions for steam that I've seen before include "Vaporised water" , "Vapour from water at boiling point" , "Source of energy" , "Source of power" , "Watery vapour" .)