Answer: subsists

AnswerCrossword Clue
SUBSISTSLives (on)
SUBSISTSMakes do
SUBSISTSLives
SUBSISTSKeeps on
subsistsProvide sustenance for
subsistsRemain in being, force, or effect
subsistsBe attributable to
subsistsSUBSIST, to continue to exist
subsistsMaintain or support oneself, esp. at a minimal level