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Absolutely fabulous, 5 letters
Carnera of Mighty Joe Young, 5 letters
Carnera of boxing fame, 5 letters
Excellent, slangily, 5 letters
First among Italians, 5 letters
First class (slang), 5 letters
First-class, in slang, 5 letters
First-class, informally, 5 letters
First-class, so to speak, 5 letters
First-rate Victorian operator (5), 5 letters
First-rate, slangily, 5 letters
Heavyweight Carnera, 5 letters
Main part in a duet, 5 letters
Of the best quality, 5 letters
Of the highest quality, slangily, 5 letters
Top-notch, in slang, 5 letters
Top-notch, slangily, 5 letters
Top-quality, in slang, 5 letters
Very valuable, slangily, 5 letters
The principal part of a duet (especially a piano duet), 5 letters
Driving prizefighter?, 12 letters
Author of The Periodic Table, 9 letters
Existing at the beginning, 10 letters
Existing from the beginning, 10 letters
Prehistoric utterances of amazement?, 14 letters
Stuff from which life on Earth might have emerged, 14 letters
Evolutionary starting point, 14 letters
Lead duet player's parts, 6 letters
Upper parts of piano duets, 6 letters
An ancestor in the direct line, 12 letters
Right of inheritance belongs exclusively to the eldest son, 13 letters