crusher

Etymology

From crush + -er (agent noun suffix), or, for one who elicits a crush, + -er (patient suffix).

noun

1. Someone or something that crushes.
2. A machine designed to crush rocks.
3. (slang, dated) A policeman.
   Anything about the police sets them a talking at once. […] 'The blessed crushers are everywhere,' shouted one. 'I wish I'd been there to have had a shy at the eslops,' said another. And then a man sung out: 'O, don't I like the Bobbys?' 1851, Henry Mayhew, “The Literature of Costermongers”, in London Labour and the London Poor, volume 1, page 25
   Back in the lobby he bought a copy of Time but didn't like the way the plain-clothes crushers looked at him, and left. 1977, John Le Carré, The Honourable Schoolboy, Folio Society, published 2010, page 110
4. One who elicits a crush or intense infatiation in another.