Polymath 522

[Spriggins]

Fictional character whose name was taken from the publisher of \"Youth\'s Companion\":
?e?r? ??s?n
Member of an Oscan-speaking people of central Italy: s???i?e
Small, white legumes, a staple food of sailors in the 19th century: n??? ??a??
Political advisors chosen for their specific area of expertise: b????? t????
Nicola, Nadine or Charlotte: p???t?

[Jan1957]

1. Perry Mason

[Lie-in King]

1d Perry Mason
13a Samnite
25a Navy beans
28a Brains trust
27d Potato

[Jan1957]

5. Potato

[Spriggins]

Many thanks everyone. Still one more! Member of a Roman Catholic missionary and teaching order: ?e?i?t
I thought it was Jesuit, but if so I have 12 across wrong; I have Belarussian for an eastern slavonic language.

[wallacia]

seen it answered as marist.

[Lie-in King]

6d Marist

10a Arapaho
12a BelOrussian

[Spriggins]

Thank you again. Got it finished at last!