1) Balanced 2) Composed 3) Having easy composure 4) Having sang-froid 5) Ready for action 6) Ready to pounce 7) Ready to strike 8) Ready to take control 9) Self-assured 10) Unflappable 11) With calm assurance Found on https://www.crosswordclues.com/clue/poised
adjective marked by balance or equilibrium and readiness for action; `a gull in poised flight`; `George`s poised hammer` Found on https://www.encyclo.co.uk/local/20974