A person who spreads rumours or causes agitation.(noun)
One who stirs or moves about, as after sleep.(noun)
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Use "stirrer" in a sentence
"They want this college grad to follow in their dad's footsteps and work as a "stirrer" for Honex, where all the bees in New Hive City have worked for millions of years, without a single day's vacation."
"Inside the inner kettle is a "stirrer," a revolving arm attached at right angles to a vertical shaft."
"The apples should be put on to cook as early in the morning as possible and cooked slowly over not too hot a fire, being stirred constantly with a long-handled "stirrer" with small perforated piece of wood on one end."