Crossword puzzle clue "more than once in a while"

Once, once more and yet once more

More than once in a while

Once more than once

Once less than once

Hamlet's "A little more than kin, and less than kind," e.g.

"Nothing is easier than to denounce the ___; nothing is more difficult than to understand him": Dostoyevsky

More than fair, less than great

Whence the line "A little more than kin, and less than kind"