Barely chewable, as steak, 5 letters
Hard to swallow, perhaps, 5 letters
Like a sailor's hands, maybe, 5 letters
An aggressive and violent young criminal, 5 letters
A cruel and brutal fellow, 5 letters
Seemingly indestructible, 12 letters
Unlucky consequence, 10 letters
Difficult one to deal with, 11 letters
Not the easiest person to deal with, 11 letters
Stubborn individual?, 11 letters
Sweet unyielding person?, 11 letters
Source of batches that are very chewy?, 16 letters
Ones who can handle adversity, 12 letters
Gangster's cold symptom?, 10 letters
Difficult individual, 13 letters
Callous conclusion?, 13 letters
Help Rabbit, Run author John get stronger?, 15 letters
More difficult to chew, 7 letters
Aquarium enforcer?, 10 letters
Observation about Bruce Willis in Disney's The Kid?, 17 letters
Isn't 200 situps excessive, coach?, 9 letters
Cause for some chin stroking, 7 letters
An aggressive and violent young criminal, 7 letters
A particularly difficult or baffling question or problem, 7 letters
Last through hardships, 10 letters
Strict parents' disciplinary measures, 6 letters
Caring but strict approach, 9 letters
Controversial teen treatment, 9 letters
Refusing to bail out one's kid, say, 9 letters
Unsentimental practicality, 15 letters
It's pretty challenging, 15 letters
Batter who's hard to retire, 8 letters
Difficult going (for a gardener?), 13 letters
Enduring adverse comments, 12 letters
Gang leader's turf claim?, 11 letters
Like broken or worn-out tools, 10 letters
Enduring strength and energy, 9 letters
The property of being big and strong, 9 letters
The elasticity and hardness of a metal object, 9 letters
Its ability to absorb considerable energy before cracking, 9 letters