Crossword puzzle clue "like some tails"

KNOT, to tie with a closed loop

adapted to seize or grasp, esp. by wrapping round; as, the prehensile tail of a monkey, also PREHENSIVE, PREHENSORIAL, PREHENSORY

a ruminant mammal

an electrically-charged particle formed by loss or gain of electrons by an atom

MERMAN, a fabulous creature with a man's body and a fish's tail

PI, to mix type indiscriminately