Solutions kept has 31 entries with similar clues

• 3-letter words
• pyxBox in the British Mint in which new coins are kept for testing
• 4-letter words
• hensBirds kept for laying
• trimWell kept
• heldKept as a prisoner
• 5-letter words
• savedKept for later
• swingHigh-speed turn with the skis kept parallel
• cigarItem kept in a humidor
• 6-letter words
• apiaryPlace where bees are kept
• storedKept for later use
• 7-letter words
• hamsterRodent often kept as pet
• piledonKept adding, as homework
• diariesbooks kept daily
• 8-letter words
• withheldKept back
• mistressKept woman
• excludedKept out
• 9-letter words
• detentionThe punishment of being kept in school after hours
• menagerieA collection of wild animals kept in captivity for showing to the public
• preservedKept quiet and booked
• 10-letter words
• coachhouseTrain hard by river where transport was kept?
• tambourineinstrument for all to see kept by rob in team nervously
• vade-mecumA handbook kept constantly at hand
• 11-letter words
• clandestineKept secret
• under-wrapsKept secret
• memorabiliaObjects kept or collected because of their association with memorable people or events
• 12-letter words
• pied-a-terreLodging kept for occasional use
• house-arrestThe state of being kept as a prisoner in one's own house
• 13-letter words
• bottom-drawerWoman's store of articles kept for marriage
• 14-letter words
• golden-hamsterRodent often kept as pet
• 15-letter words
• stiff-upper-lipIt is kept by stoics
• ulterior-motiveUnderlying motive kept concealed so as to deceive
• 25-letter words
• skeletons-in-the-cupboardDiscrediting facts kept secret