Answer: tensing

AnswerCrossword Clue
TENSINGGetting wound up
TENSINGMaking less lax
TENSINGBecoming tight
TENSING... Norkay, conqueror of Everest.
TENSINGNorkay of Everest fame.
TENSING... Norkay, Everest climber.
TENSINGMaking taut
TENSINGGetting uptight
TENSINGShowing strain, maybe
tensingBecome tense, typically through anxiety or nervousness
tensingMake (a muscle or one's body) tight or rigid
tensingTENSE, to make taut (fully stretched)