Crossword puzzle clue "spars in the ring and features of the four longest puzzle answers"

Spars in the ring, and features of the four longest puzzle answers

Features of some sports cars, and what this puzzle's four longest answers have in common

Item with features that begin this puzzle's four longest answers

Org. that has four teams with non-plural nicknames, which begin this puzzle's four longest answers

Angle irons graphically represented by four sets of black squares in this grid, and by letter formations starting in the four longest answers

"Dog the Bounty Hunter" network, and a hint to the theme in this puzzle's four longest answers

Court term, and hint to this puzzle's four longest answers

Houses with sharply angled roofs, and what this puzzle's four longest answers literally have in common