Driver of some engines (5)
I believe the answer is:
steam
(Other definitions for steam that I've seen before include "Gas from boiliing water" , "get very angry" , "Driving force" , "Cook" , "Form of water" .)
I believe the answer is:
steam
(Other definitions for steam that I've seen before include "Gas from boiliing water" , "get very angry" , "Driving force" , "Cook" , "Form of water" .)