Burn somewhat (4)
I believe the answer is:
sear
'burn somewhat' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for sear that I've seen before include "Scorch or burn the surface of" , "Make very hot and dry" , "Cauterize" , "Cauterise" , "Dried-up, parched" .)