Crossword puzzle clue "aquarium performer"

any of a group of small toothed whales belonging to the family Delphinidae

a marine mammal, also ORC

a short-snouted genus of the dolphin family, also PORPESS, PORPESSE

to put air into

AERATE, to put air into

that which supplies with air; esp. an apparatus used for charging mineral waters with gas and in making soda water