1 across. <span>Clown’s role in </span><i>Hamlet</i>. 11 letters.
9 across. Make an exact copy. 9 letters.
10 across. Burton or Berners-Lee? 3 letters.
11 across. Make a case. 5 letters.
13 across. Offensive, shocking. 7 letters.
14 across. Sly. 6 letters.
15 across. Platitude. 6 letters.
18 across. Belt, bill or room? 7 letters.
20 across. Powerful individual. 5 letters.
21 across. US actress and singer ___ Arthur, died 2009. 3 letters.
22 across. Intermediary. 2-7 letters.
24 across. Way to improve air quality. 11 letters.