Salivate (5)
I believe the answer is:
drool
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">salivate</span>' is the definition.<br/ ><span class="explanation-format__explanation">(drooling is a kind of salivating)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for drool that I've seen before include "Show excitement" , "Spill saliva" , "Slaver - drivel" , "Let saliva run from the mouth" , "Dogs may" .)