Possible Clues:

• Self-denying person who shuns ordinary pleasures
• Investigators employed in federal bureau come up with self-discipline
• Leading a severely simple life without worldly pleasures
• Cast with ice and somewhat icy
• One who practises severe selfdenial
• The confused case over the jerk, pure and simple
• That's one that's 5 down enough to be acid about the South
• One living strict life
• Leading severely simple life
• Practicing great self-denial