Possible Clues:

• The lower 48, to a Hawaiian
• Most of Italy, to 14-Down residents
• California et al, to Hawaiians
• Area excluding offshore islands
• Sea and shore - or just the shore
• Country or continent, as distinguished from an island
• Principal part of a country, not an island
• A country excluding its adjacent islands
• Part of China
• The rest of the U.S., to Hawaiians (with 'the')