Solutions Least common has 20 entries with similar clues

• 4-letter words
• neapLeast in difference between high and low tides
• mossWhat a rolling stone is least likely to gather
• ican"it's the least .... do!"
• 5-letter words
• worstLeast satisfactory
• 6-letter words
• safestLeast risky
• rudestLeast polite
• oldestLeast young
• 7-letter words
• minimumLeast
• neatestLeast untidy
• leanestLeast fatty
• 8-letter words
• on-paperAt least theoretically but not practically
• minimiseMake the least of
• 9-letter words
• democracyThe least worst political system
• 10-letter words
• not-at-allNot in the least
• the-balticThe world's least salty sea
• neap-tidesTides in spring that attain the least height
• 12-letter words
• occams-razorIdea that the least complex of differing theories is the best
• teachers-petLeast popular child in the class
• 14-letter words
• the-baltic-seaWorld's least salty sea
• 16-letter words
• to-put-it-mildlyTo say the least