Burn on the grill (4)
I believe the answer is:
char
'burn on the grill' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for char that I've seen before include "Overcook - fish - daily" , "Burn slightly" , "Daily cleaner; burn" , "Perhaps overheat" , "Person who cleans" .)