D defs.my
Entry 1 sense Webster, 1913

Stirrer

/stûrʹər/ · Stir·rer · IPA /ˈstɝɚ/
01 n. One who, or that which, stirs something; also, one who moves about, especially after sleep; as, an early stirrer.
  1. 1.
    One who, or that which, stirs something; also, one who moves about, especially after sleep; as, an early stirrer.
Phrases & compounds
Stirrer up — an instigator or inciter.