1) Essayer 2) He makes an effort 3) Human 4) Individual 5) Mortal 6) One who tries 7) Person 8) Somebody 9) Someone 10) Soul 11) Trier 12) Trying person Found on https://www.crosswordclues.com/clue/attempter
At·tempt'er noun 1. One who attempts; one who essays anything. 2. An assailant; also, a temper. [ Obsolete] Found on http://www.encyclo.co.uk/webster/A/142