Possible Clues:

• Having two equal-length legs
• The triangle, strangely, is EEC loss
• Of triangular, with two sides of equal length
• With two sides equal, one's close in play with bridge opponents
• There's two besides, just the same, figuratively
• Of triangle, having two sides of equal length
• (Triangle) with two equal sides
• (Of triangle) with two equal sides
• Sees coils wrapped round triangle
• There are two the same in this sort of 14 down