Less wet (5)
I believe the answer is:
drier
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">less wet</span>' is the definition.<br/ ><span class="explanation-format__explanation">('dry' can be the opposite of 'wet' so perhaps 'drier' is reasonable for 'less wet')</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for drier that I've seen before include "See 1" , "It removes moisture" , "Machine which removes water" , "More arid" , "getting less rainfall" .)