Possible Clues:

• Singular hockey player?
• Hero whose catchphrase begins 16-, 23-, 33- and 47-Across
• 1988 Radio Hall of Fame inductee, with "The"
• Masked man of westerns
• Green Hornet's great-uncle, with "The"
• Silver owner
• Figure seen on [circled letters below]
• He rode to "William Tell Overture"
• Western master of disguise
• Tonto's friend, with "The"