troubler Meaning, Definition & Usage

  1. noun someone who deliberately stirs up trouble
    mischief-maker; troublemaker; bad hat; trouble maker.

WordNet

Trou"bler noun
Definitions
  1. One who troubles or disturbs; one who afflicts or molests; a disturber; as, a troubler of the peace.
    The rich troublers of the world's repose. Waller.

Webster 1913