Crossword puzzle clue "what have been banished from the four longest answers"

What have been banished from the four longest answers

Number of protons by which the elements in the four longest puzzle answers have been enhanced

Helping hand that's been "lent" to the four longest answers

Word that's "shifted" in the first four letters of the 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

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

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

Off one's rocker, and a hint to what the four longest puzzle answers have in common