Dry up, sear (5)
I believe the answer is:
parch
I believe this clue is a double definition.
'dry up' is the first definition.
(I've seen this in another clue)
'sear' is the second definition.
(I know that sear can be written as parch)
(Other definitions for parch that I've seen before include "Dehydrate" , "Cut off water supply" , "Get overheated" , "Make hot and dry" , "Make dry through heat" .)