The most common and most likely answer to this crossword clue is the 9 letter word SPARTACUS
I've seen this crossword clue in Independent
S
P
A
R
T
A
C
U
S
More clues leading to the result SPARTACUS
- Film role in bag with support of American
- Bag gripping role on American movie
- After fight, thanks copper and son, leader of revolt
- Film — Fight Club — regularly shown during flipping day off?
- To practise fighting, cuts a worried gladiator
- Our bolshie Dave joins with Bill, whom many fellow rebels claimed to be
- Gladiator‘s about to catch up with you and I
- Primarily servile role taken by Bill, American slave
- Gladiator in cap US star bizarrely portrayed
- Pole raised whip over American slave hero
Buddy explains!
The straight part
We know that "20" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case 20 = spartacus.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.