3.
Ship commanded by Martin Pinzón
6.
Cryptobiologist's interest, perhaps
13.
Like Latvia or Lithuania
15.
Iron-containing: Prefix
19.
Mozart's "L'___ del Cairo"
22.
Size of country's economy
23.
Like some verbs: Abbr.
25.
Heartbreak House playwright
33.
Gridiron abbreviations
50.
Punishment for a child, maybe
53.
Ending for pay or gran