Possible Clues:

• Mediterranean Sea tourist destination
• Sanchez ultimately in the hands of leaders of independence battle in autonomous Catalan-speaking territory
• Island famous for its nightlife
• Island home to the world's biggest nightclub
• One business area's last resort
• Mediterranean island known for its nightlife
• A Balearic island
• Mediterranean ''party island''
• Island with a gripping entertainment industry -- this one?
• Island where unknown character has broken bone, having struck head