Possible Clues:

• One prone to withdrawal
• Solitary lady's time almost up
• Hardly a company man?
• Recluse in leather mittens
• Solitary saint?
• Very solitary sort
• One wanting solitude gets it on small Channel Island
• Solitary record success includes REM riff
• Island it follows is for one living in solitude
• One who lives in solitude, for religious reasons perhaps