Solutions Batman and Robin, e.g. has 10 entries with similar clues

• 4-letter words
• maskPart of a Batman or Spider-Man costume
• burtward of "batman"
• west"batman" actor
• 5-letter words
• enemyThe Joker, to Batman
• robinbatman's sidekick
• 6-letter words
• asylumArkham ..., institution for many Batman foes
• arnettbatman's voice, in "the lego movie"
• rivalsBatman and the Joker, for example
• 10-letter words
• disorderlybatman appears after detective's confused
• boy-wonderBatman's Robin