Burn with steam (5)
I believe the answer is:
scald
'burn with steam' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for scald that I've seen before include "Injure with hot liquid" , "Hurt with hot water" , "Heat (milk) to near boiling point" , "Burn with hot liquid" , "Injure with steam" .)