1) Attachment to rear 2) Bitter follower 3) Bitter or tail 4) Bitter or week follower 5) Card kid 6) Closer 7) Concluder 8) East or West follower 9) Finale 10) Finisher 11) Finishing agent 12) Follower of bitter or tail 13) Follower of rear or week 14) German swimmer kornelia 15) He got Game 16) It finishes Found on https://www.crosswordclues.com/clue/ender