custard apple vs edible fruit

custard apple and edible fruit both are nouns.

Word	Noun	Adjective	Verb	Adverb
custard apple	Yes	No	No	No
edible fruit	Yes	No	No	No

As nouns, edible fruit is a hypernym of custard apple; that is, edible fruit is a word with a broader meaning than custard apple:

custard apple: the fruit of any of several tropical American trees of the genus Annona having soft edible pulp
edible fruit: edible reproductive body of a seed plant especially one having sweet flesh

custard apple (noun)	edible fruit (noun)
the fruit of any of several tropical American trees of the genus Annona having soft edible pulp	edible reproductive body of a seed plant especially one having sweet flesh
any of several tropical American trees bearing fruit with soft edible pulp