Maker of many jets JACUZZI
One in a box SPECTATOR
Who's sorry now? RUERS [I recall "Who's Sorry Now" was a Connie Francis hit song in the late '50's.]
Hot time in Chile ENERO [January in South America is summer --- and chile peppers are hot --- but our language and this puzzle is in English]
Note: ENTRE at 53 Down is a foreign word that is actually used in our language, e.g. entr'acte and entre nous.