Today’s Saturday Stumper

Today’s Newsday Saturday Stumper, by Lester Ruff, is. Is less rough, that is. Gimmes abound: 8-D, four letters, “Whom Sam calls ‘Miss’”; 44-A, three letters, “Name associated with fins”; 48-A, four letters, “‘Garden of Earthly Delights’ depiction.”

My favorite clue-and-answer pairs:

7-D, five letters, “Backs up when one shouldn’t.” A clever way to clue a familiar crossword answer.

27-A, five letters, “No time at all.” You don’t often hear the answer in conversation these days.

30-A, three letters, “It’s just above 4.” Excellent!

38-A, fourteen letters, “Second album with ‘All My Loving.’” Why? Just because. But “Because” is on a later album.

And a clue whose answer I could not understand, until I just did: 24-D, seven letters, “She’s repurposed heaters.”

No spoilers: the answers are in the comments.