Scottish Gaelic: plural clàran.  A dish, three to four feet long, 18″ wide, made of deal, with straw or grass on the bottom; a communal dish from which the family ate, with the food crumbs and straw being given to the animals after.

Other meanings given by Wiktionary include table, tablet; record, recording, or picture; notice, poster, list or register; disk or console; plank, board, platform or deck; platter or panel.

Source: Adam Nicolson, Sea Room: An Island Life (London: Harper Collins, 2013 (2002)), p. 244 and Wiktionary.org