Solutions An entirely different matter has 17 entries with similar clues

• 4-letter words
• poseattitude supposedly? not entirely
• isleLand surrounded entirely by water
• 5-letter words
• eatupconsume entirely
• rhinoAnimal with one or two horns made entirely of keratin
• useupGo through entirely (2 wds.)
• 6-letter words
• islandLand surrounded entirely by water
• vacuumEntirely empty space
• purelyEntirely
• 7-letter words
• in-totoEntirely
• lesothoKingdom entirely surrounded by South Africa
• 10-letter words
• wood-louseCrustacean that lives entirely on land
• unforeseenSudden and entirely unexpected
• altogetherEntirely
• 11-letter words
• unannouncedSudden and entirely unexpected
• 13-letter words
• mothercountrydifferent matter, right, when in this person's original home
• 14-letter words
• know-backwardsBe entirely familiar with
• 17-letter words
• straight-as-a-dieEntirely open and honest