Possible Clues:

• Not equilateral with a right-angle in the picture
• (Of a triangle) with three unequal sides
• In such a triangle, can see line needs adjusting
• (Of triangle) with no sides equal
• Neither equilateral nor isosceles
• Type of triangle with three unequal sides
• Get on top of opponents at bridge, not having evenly matched sides
• Not isosceles
• Describing a triangle with unequal sides
• Type of 16 part 2 with a right angle in view?