Crossword Puzzle Round bullets

Clue: Round bullets

Rounds after round robins (SEMIS with 5 letters)
Runners may round them (BASES with 5 letters)
Round Greek letter (THETA with 5 letters)
Kind of round in a tournament, informally (ELIM with 4 letters)
Rounded top (DOME with 4 letters)
Final round? (LASTLAP with 7 letters)
Roundish coif (AFRO with 4 letters)
Round-faced flier (OWL with 3 letters)
Chest rounds (RALES with 5 letters)
Defeated leader of the Knights of the Round Table? (BEATENARTHUR with 12 letters)