Wiktionary
wax apple
n. 1 a tropical plant, ''Syzygium samarangense'', bearing an edible fruit 2 the fruit of this plant
Usage examples of "wax apple".
Westlake's ex-detective, Mitch Tobin, the focus of a series of novels (Kinds of Love Kinds of Death, Murder Among Children, Wax Apple, A Jade in Aries, and Don't Lie to Me), is a man with a monkey on his back: the monkey is guilt.