Answer: harnessed

AnswerCrossword Clue
HARNESSEDTook control of
HARNESSEDGeared, as draft animals.
HARNESSEDPut to use
harnessedControl and make use of (natural resources), esp. to produce energy
harnessedAttach a draft animal to (something) by a harness
harnessedPut a harness on (a horse or other draft animal)
harnessedHARNESS, to equip with gear