Heat discolouration (6)
I believe the answer is:
scorch
(Other definitions for scorch that I've seen before include "Mark, hurt, with heat" , "Burn on surface, char" , "feel too hot" , "Burn; drive very fast (informal)" , "Burn superficially" .)
I believe the answer is:
scorch
(Other definitions for scorch that I've seen before include "Mark, hurt, with heat" , "Burn on surface, char" , "feel too hot" , "Burn; drive very fast (informal)" , "Burn superficially" .)