Piece of meat stuffing baguettes, I once recalled

• One group breaking record that's nutty
• Sweet piece of meat
• Small round cut of meat
• Lean fillet, as of lamb
• Morsel of meat
• Sweet little letter containing crossword compiler’s admission?

Wiktionary Word definitions in Wiktionary
a. flavoured with hazelnuts n. a small round thick slice of meat (in particular, lamb or veal) that has been deboned

Wikipedia Word definitions in Wikipedia
Noisette (which means hazelnut in French) can refer to: A small round piece of lean meat, especially lamb Beurre noisette , browned butter used in cooking Sauce noisette, a type of Hollandaise sauce made with browned butter A chocolate made with hazelnuts ...

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Noisette \Noi*sette"\, n. (Bot.) A hybrid rose produced in 1817, by a French gardener, Noisette, of Charleston, South Carolina, from the China rose and the musk rose. It has given rise to many fine varieties, as the Lamarque , the Marechal (or Marshal) ...