Burnt superficially (6)
I believe the answer is:
singed
'burnt superficially' is the definition.
('singe' can be a synonym of 'burn superficially')
This is the entire clue.
(Other definitions for singed that I've seen before include "Burned superficially" , "Burned slightly at the edges" , "Scorched" , "Slightly burned on the surface" , "Burned by design" .)