Possible Clues:

• Partner in exploring
• 1 across with gun
• 1988 Olympics superheavyweight gold medalist
• Defeater of Holyfield and Tyson
• C. S. ---, --- Carroll, authors
• - - Carroll (lit)
• The French want a poet as a driver
• Author Sinclair
• "John ___: Good Trouble" (2020 documentary)
• Western Isle's half (next to the other half)