Crossword puzzle clue "clear for keeping"

Clear for keeping

Clear ___ (not clear at all)

Clear as ___ (not at all clear)

Writer Gilbert who translated Georges Perec's lipogrammatic novel "La Disparition" into English, keeping it e-less

The Who's "Love ___ for Keeping"

He said "Marriage is nature's way of keeping us from fighting with strangers"

Keeping one's radar up

Superhero whose power is keeping ships from drifting?