Char on a grill (4)
I believe the answer is:
sear
'char on a grill' 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" , "Burn, scorch intensely" , "Cook (quickly at great heat)" , "Dried-up, parched" , "Make very hot and dry" .)