Hot and dry (6)
I believe the answer is:
torrid
'hot and dry' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for torrid that I've seen before include "Scorchingly hot" , "Blistering - steamy" , "Extremely hot" , "Dried with heat or intensely passionate" , "Highly charged emotionally" .)