| MONTAGU | John, 4th Earl of Sandwich, who lent his name to a snack (7) |
| BREAD | Baked food used to make the snack invented by John Montagu, 4th Earl of Sandwich (5) |
| EARL | Origin story: Named for a nobleman, the word "sandwich" comes from the Fourth ___ of Sandwich (who was known to handle a hearty handheld meal) |
| HERBERT | Philip ---, 4th Earl of Pembroke, one of the 'incomparable pair of brethren' to whom Shakespeare's First Folio was dedicated (7) |
| LESPAUL | Electric-guitar pioneer who lent his name to a classic line of Gibsons |
| MALTHUS | Economist Thomas Robert who lent his name to a famous "trap" |
| LEOTARD | Jules who lent his name to an article of attire |
| LACOSTE | Sports star who lent his name to a clothing line |
| ANTHONY | Saint who lent his name to a cross |
| TOASTIE | Drink, that is, to a snack (7) |
| EGGROLL | Encourage to turn to a snack |
| ORRERY | 4th Earl of -; title of Charles Boyle, after whom a clockwork model of the solar system was named (6 |
| BOTHWELL | 4th Earl of -; title Mary, Queen of Scots husband who was implicated in the murder of Lord Darnley (8) |
| PETERSHAM | Named after a courtesy title of Charles Stanhope, 4th Earl of Harrington, sawtooth-edged grosgrain-like rayon ribbon, used for hatbands or binding (9) |
| ABERDEEN | George Hamilton-Gordon, 4th Earl of ---, prime minister of the UK 1852-55 (8) |
| LOCKE | Philosopher John who lent his name to a "Lost" character |
| ERNST | Physicist Mach who lent his name to a measure of speed |
| FUMANCHU | Dr ___, fictional villain who lent his name to a type of moustache? (2,6) |
| JIMMYDEAN | Singer who lent his name to a brand of breakfast sausages |
| PETRI | German bacteriologist who lent his name to a kind of dish |
