
1) Ape
Found on
https://www.crosswordclues.com/clue/bonzo

1) Ape in a Reagan film 2) Chimp in a Reagan film 3) Cinematic chimp 4) Early reagan associate 5) Early Reagan chimp co-star 6) Movie chimp 7) Noted Reagan co-star 8) Onetime Reagan co-star 9) Reagan costar of 1951 10) Reagan, to detractors 11) Ronald Reagan costar in 1951 12) Simian co-star of Reagan
Found on
https://www.crosswordclues.com/clue/bonzo
No exact match found.